Ruger 77 50 Users Manual 77/50 For Pdf

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Ruger 77-50 Ruger 77-50

2015-02-03

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INSTRUCTION
MANUAL
FOR
BLUED &
STAINLESS
STEEL

CALIBER
.50 Round or
Conical Ball
BLACK POWDER OR
PYRODEX ONLY

RUGER®
MODEL 77/50

INLINE MUZZLELOADING BLACK POWDER
PERCUSSION RIFLE

READ THE INSTRUCTIONS AND
WARNINGS IN THIS MANUAL CAREFULLY
BEFORE USING THIS FIREARM

For Product Service on This Model Please Call:
(603) 863-3300 (See p. 38)

STURM, RUGER & Company, Inc.
Southport, Connecticut 06490 U.S.A.
THIS INSTRUCTION MANUAL SHOULD ALWAYS ACCOMPANY THIS FIREARM AND BE
TRANSFERRED WITH IT UPON CHANGE OF OWNERSHIP, OR WHEN THE FIREARM IS LOANED OR
PRESENTED TO ANOTHER PERSON.

77/50 - 3/98
R1

FIREARMS SAFETY-YOUR RESPONSIBILITY
SAFETY MUST BE THE FIRST AND CONSTANT
CONSIDERATION OF EVERY PERSON WHO
HANDLES FIREARMS AND AMMUNITION.
This Instruction Manual is designed to assist you in learning how to use and
care for your RUGER® MODEL 77/50TM muzzleloading rifle properly.
Only when you are certain you fully understand the Manual and can properly
carry out its instructions should you practice loading, etc. with live
ammunition.
If you have any doubts about your ability to handle or use a particular type
of gun safely, then you should seek supervised instruction.
Such personalized instruction is often available from gun dealers, gun clubs
or police departments. If none of these sources can help you, write to the
National Rifle Association, 11250 Waples Mill Road, Fairfax, VA 22030-7400.
They will assist you.
The person with a gun in their possession has a full-time job. You cannot
guess; you cannot forget. You must know how to use your firearm safely. Do
not use any firearm without having a complete understanding of its
particular characteristics and safe use.
Remember: There is no such thing as a foolproof gun.

TABLE OF CONTENTS
Page
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operation of Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Ammunition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Eye and Ear Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
To Load and Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
To Unload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Basic Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Regarding Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
To Clear a Malfunction (“Jam”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Maintenance of Stainless Steel Components . . . . . . . . . . . . . . . . . . . . . . . 36
Attaching Scope Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Sight Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Service and Parts Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
The Basic Rules of Safe Firearms Handling . . . . . . . . . . . . . . . . . . . . . . . 43
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
“Ruger®” is a registered U.S. trademark.
“77/50TM” is a trademark of Sturm, Ruger & Co., Inc.

WARNINGS OF GREAT IMPORTANCE ARE
FOUND ON THE FOLLOWING PAGES:

Alterations
Manual Safety
Lead Exposure
Ammunition
Black Powder
Percussion Caps
Loading
Handling

3
7
7
8
9
11
13
17

Firing
Reloading
Mishandling
Disassembly
Lubrication
Storage
Malfunctions
Parts Purchasers

17
18
19
22
29
30
35
39

OTHER CAUTIONS AND WARNINGS APPEAR
THROUGHOUT THE MANUAL.
FIREARMS ARE DANGEROUS WEAPONS –
MUZZLELOADING BLACK POWDER FIREARMS
REQUIRE SPECIAL PRECAUTIONS.
READ THE INSTRUCTIONS AND WARNINGS IN THIS
MANUAL THOROUGHLY AND CAREFULLY BEFORE USING.

! WARNING–ALTERATIONS
This product was designed to
function properly in its original
condition. Alterations can make it
unsafe. Do not alter any part or add
or substitute parts or accessories
not made by Sturm, Ruger & Co. Inc.

DO NOT ALTER ANY GUN

GENERAL INFORMATION
AND MECHANICAL CHARACTERISTICS
The rifle you have chosen, the RUGER® MODEL 77/50 muzzleloading
rifle, is an original Ruger design. It is manufactured to our regular standards of
strength and reliability entirely in modern Ruger factories in the U.S.A. High
quality steels and coil springs are used throughout, the same as in our centerfire
rifles. It is a bolt-action, single shot, muzzleloading black powder rifle of modern
design. It gives the black powder shooter many of the convenience and safety
features of modern Ruger centerfire rifles, combined with traditional
muzzleloading rifle characteristics. It is particularly useful for black powder
hunting and target shooting.

The RUGER® MODEL 77/50 is a muzzleloading, percussion rifle intended
for use with black powder, percussion caps, soft lead and jacketed “saboted”
projectiles. It has a precision rifled barrel with a 1-in-28” rifling twist. It does not
fire conventional cartridges, but is instead loaded from the muzzle of the barrel.
It is of bolt-action operation, and must be cocked and capped by opening the
bolt, placing a cap on the nipple, and then closing the bolt before normally firing
the rifle by pulling the trigger.
Like any such rifle, it is to be USED WITH BLACK POWDER OR PYRODEX
ONLY, and its safe use requires that the shooter be thoroughly familiar with the
special characteristics of these firearms.
Other notable features of the RUGER® MODEL 77/50 rifle include: A
three-position safety; in-line bolt action ignition; a fast lock-time trigger
mechanism (non-adjustable); a flush positioned bolt stop (bolt release); a
hardwood stock with a rubber recoil pad; and studs to which sling swivels can be
attached.
The receiver of the RUGER® MODEL 77/50 rifle incorporates integral
scope mount bases (see illustration next page). It also comes with open sights – a
gold bead front sight and a folding leaf rear sight which is adjustable for
elevation and windage.
Disassembly of the rifle to its major components is readily accomplished by
removal of two screws and the barrel band. The bolt assembly can be quickly
disassembled for cleaning.
All mechanical components are made of heat-treated chrome-molybdenum or
stainless steel, with music wire coil springs throughout the mechanism.
The mechanism of the RUGER® MODEL 77/50 provides for security
against accidental discharge when properly handled. As with any other firearm,
however, it must be used with strict attention to correct safety practices, some of
which are unique to muzzleloading firearms. In addition, the rifle should be
inspected frequently to assure that it is working properly.
The RUGER® MODEL 77/50 Officer’s Model has the same
mechanism and operation as the standard Model 77/50, but is furnished with a
special straight-gripped walnut stock with cut-checkered grip and forend and a
curved butt plate reminiscent of the “Officer’s Model” Springfield rifles privately
purchased by Calvary officers over a century ago.
The RUGER® MODEL 77/50 is also available in stainless steel construction
with a laminated stock, for increased corrosion resistance and protection from
the elements.

NOMENCLATURE
Barrel

Recoil Pad
Stock

Barrel Band

Front Sling
Swivel

Muzzle
Front Sight

Ramrod
Thimble
Ramrod

Rear Sling
Swivel

Ramrod Tip

Safety
(Shown “ON”)

Scope Mount Bases

Rear Sight

Nipple

Bolt Handle

Receiver

Bolt Sleeve

Bolt

Striker/Cocking Piece
Disassembly Hole

Trigger Guard
Trigger

Bolt Stop

Figure 1. Components frequently referred to are identified. In these photographs the cocking piece is
shown cocked (protruding from the rear of the bolt sleeve) revealing the disassembly hole in the lower
portion of the cocked piece. The bolt stop (on the left side of the receiver) permits the bolt to be
withdrawn simply by pressing down lightly with the thumbnail. The safety selector (show in the “Safe”
position) should be in the “Load-Unload” position when the bolt is being removed or being installed.

OPERATION OF SAFETY
The RUGER® MODEL 77/50 rifle has a three position safety. The safety
selector is located at the right of the bolt sleeve.
The safety selector can be moved from the “Fire” position to its two other
positions (“Load-Unload” and “Safe”) only when the striker is cocked. Fully
raising the bolt handle cocks the striker.
The bolt handle can be raised and lowered only when the safety selector is in
either the full forward “Fire” or the middle “Load-Unload” position. When the
safety selector is in the full rearward “Safe” position, the bolt handle is locked in
the closed (fully down) position in order to prevent inadvertent lifting of the bolt
handle and to ensure that the rifle will be ready to fire when the safety is taken
“off”.
Practice (with an unloaded rifle) moving the safety selector to the three positions
until you know the position of the safety selector for the three modes– “Fire,”
“Load-Unload,” and “Safe.” WARNING: When manipulating the safety selector,
DO NOT HAVE ANY FINGER INSIDE THE TRIGGER GUARD! When the safety
selector is in the “Fire” position and the trigger is pulled, the rifle will fire.
The safety selector should always be in the “Safe” position except when the gun
user is actually firing or unloading the rifle. The safety selector should
unfailingly be moved to the “Safe” position whenever the gun user ceases firing.

SAFETY POSITIONS

Figure 2. Safety selector in
“FIRE” (full forward) position.
The safety selector should be
moved to this position only when
the gun user is actually firing
the rifle. When the safety is in
the fire position, it is referred to
as being “off.” (When the safety
is in the “SAFE” position, shown
in Figure 4, it is referred to as
being “on.”)

Figure 3. Safety selector in
“LOAD-UNLOAD” (middle)
position. The safety selector should
be in this position when the bolt is
being cycled, to place a percussion
cap on the nipple, to remove a
percussion cap from the nipple, or
when unloading the rifle. As soon
as the bolt is closed, the safety
selector should be moved fully
rearward to the “SAFE” position
shown in Figure 4, unless the rifle
is to be fired immediately.

Figure 4. Safety selector in
“SAFE” (full rearward) position.
The safety selector is fully nested
in the groove in the cocking piece.
When the safety selector is in this
position, the bolt handle cannot
be raised. The curved arrow on the
bolt sleeve indicates the direction
and motion of the safety selector
to bring it to the “SAFE” position.
Keep the safety in this position
except when actually loading,
capping, unloading, or firing.

WARNING – MANUAL SAFETY
3 FIRE

2
LOADUNLOAD

Keep the safety on unless actually firing. Always
move the safety fully to its intended position and
check it. The safety has three positions –“SAFE,”
“LOAD-UNLOAD,” and “FIRE.” Never depend on a
safety mechanism or any other mechanical device
to justify careless handling or permitting the rifle
to point in an unsafe direction. The only “safe”
rifle is one in which the bolt is open, the barrel is
empty of both powder and projectile, and the
nipple is uncapped.

1 SAFE

KNOW HOW TO USE THE SAFETY
The safety selector is held in each of its positions by a plunger that is under
spring tension. Therefore, the gun user should frequently check the position of
the safety selector to be certain it has not been inadvertently moved. If the safety
does not function properly, or if the selector seems to move too easily, or if the
safety selector does not seem firmly positioned in any of its three positions, the
rifle should be discontinued from use and returned to the Newport Product
Service Department for repair (See p. 38).

WARNING – LEAD EXPOSURE
Discharging firearms in poorly ventilated
areas, cleaning firearms, or handling
ammunition may result in exposure to
lead and other substances known to the
state of California to cause birth defects,
reproductive harm, and other serious
physical injury. Have adequate ventilation
at all times. Wash hands thoroughly after
exposure.

SHOOTING OR CLEANING GUNS
MAY EXPOSE YOU TO LEAD

AMMUNITION
BLACK POWDER OR PYRODEX ONLY
The RUGER® MODEL 77/50 is a single shot muzzleloading percussion
rifle intended solely for use with Black Powder or Pyrodex. It should never, under
any circumstances, be loaded with any type of smokeless powder as the result
could be damage to the rifle and injury to the shooter or bystanders. Be aware
that certain smokeless powders may appear black in color even though they are
not Black Powder! Never use any powder that you are not certain is actually
Black Powder. The best way to do this is to only use powder from clearly marked
original cans of Black Powder or Pyrodex.

Black Powder is usually classified by powder grain size, with “Fg” being the
largest granulation and “FFFFg” being the smallest granulation normally
available. Use only “FFg” (sometimes called “2F”) grain size black powder in the
RUGER® MODEL 77/50 rifle. Replica Black Powder such as Pyrodex RS
may be used, so long as suggested loading data is strictly adhered to. Note that
Pyrodex RS is less dense than FFg black powder and must only be used as a
measure-for-measure substitute for FFg black powder. If you substitute Pyrodex
RS for FFg black powder on a weight-for-weight basis, you will overcharge your
rifle and risk serious injury.

POWDER CHARGE
Since Black Powder is sold in bulk, you are in complete control over how you
load your rifle. Be sure to weigh each charge, or use a dipper which holds the
exact weight of powder you wish to load. Check to be sure the dipper holds the
correct amount of powder by weighing a dipper-full of powder before you begin
loading your rifle from the dipper. Never load powder into the barrel directly
from a flask or other powder container -- you run the serious risk of explosion
and severe personal injury.
A good starting accuracy load, using a pure lead .50” diameter ball or conical
projectile, is 40 grains of FFg black powder. You may find that adjustment of this
charge upward or downward is more accurate in your rifle. A good starting
hunting load for deer-sized game with the same projectile is 70 grains of FFg
black powder. Consulting a black powder loading manual for recommended
target or hunting loads is essential. Never exceed the maximum powder charge
listed for the specific projectile you are using! Never exceed a powder charge of
120 grains of FFg black powder, regardless of the projectile you are using!

WARNING – AMMUNITION

Never Use Unknown
or Smokless Powder

Death, serious injury, and damage
can result from the use of wrong
ammunition, bore obstructions,
powder overloads, or incorrect
components. Always wear
shooting glasses and hearing
protectors.

?
POWDER?

Never use smokeless powder in
any muzzleloader! Never fire an
unknown powder charge. If you
are uncertain as to which
components your rifle is loaded
with, do not fire it -- you must
unload your rifle and remove the
unknown components.

IMPROPER AMMUNITION
DESTROYS GUNS
8

WARNING–BLACK POWDER
Black Powder is an extremely sensitive
propellant and is readily ignited by heat,
spark, static electricity, friction, pressure,
impact, etc. Unlike smokeless powder,
Black Powder will ignite with great
violence and rapidity even when
unconfined.
Black Powder should be handled only in
very small quantities. Never pour powder
directly from a flask or powder horn into
any muzzleloading firearm! Never smoke
while handling Black Powder!
Many shooters pre-weigh single charges
into small containers for use on the
range or in the field. Never fire the rifle
near an open powder container, or an
explosion may result.
If you are not familiar with safe handling
procedures for Black Powder and for
muzzleloading firearms in general, you
should obtain one of the authoritative
muzzle loaders’ Manuals and study it
carefully before beginning to shoot.

Never Pour
Powder Directly
From Flask!

BLACK POWDER IS
EXPLOSIVE
PROJECTILES
The RUGER® MODEL 77/50 is designed to use a .500” diameter pure lead
round ball or lubricated conical bullet of pure lead, a .490” round ball with a
lubricated .010 - .015” thick cloth patch, or a smaller diameter projectile encased
in a .500” diameter sabot. Bullets of either type can be purchased from your
dealer, ready to use, or can easily be cast at home with a small investment in
equipment. Information on bullet casting is available from the manufacturers of
moulds and casting equipment and from various authoritative handbooks. Your
dealer should be able to provide you with any equipment which you may require.
(See “Lead Exposure” Warning, p. 7)
The Ruger Model 77/50’s rifling twist (1 turn in 28”) is designed for best results
with pre-lubricated soft lead conical projectiles, or jacketed or soft lead bullets
encased in “sabots” (See p. 10). Patched round balls generally do not deliver as
high a level of accuracy with this rifling twist, but may be safely used if correctly
loaded (See p. 14).
The use of non-saboted jacketed or alloy bullets is not recommended as accuracy
is generally not as satisfactory as with the pure lead bullets. They may be difficult
to load and may raise pressures to dangerous levels.
Whatever projectile you select, you must remember that if it is not a tight fit in
the barrel when loaded, it could shift forward off the powder charge and act as a
bore obstruction, causing the barrel to bulge or burst when fired! It is your

responsibility to select the proper lead ball/patch combination of a lubricated
conical lead bullet that fits securely in the bore, yet is not excessively difficult to
load, particularly after a shot or two of black powder fouling has built up in the
bore.
Never load multiple projectiles into the barrel. The rearmost projectile slamming
into the other projectiles when fired could cause a burst barrel and severe
personal injury. Use only one bullet at a time.

SABOTS
Some projectiles designed for muzzleloading rifles are considerably undersized
from the bore diameter and are encircled by a resilient synthetic or fibre “sabot”
or “shoe”. An undersize sabot can easily release its projectile to become a bore
obstruction, or the sabot itself can act as a bore obstruction. Never lubricate a
sabot -- this can cause the saboted bullet to slip forward up the bore and act as
an obstruction when fired, possibly resulting in destruction of the rifle and
severe injury to the shooter or bystanders! If sabots are used, their
manufacturer’s directions must be scrupulously followed.

PATCHING
.490” diameter round ball projectiles of soft lead must be fired with a lubricated
round linen cloth patch of .010 - .015” thickness (about that of a gun cleaning
patch) and about 1.5” diameter. However, many shooters prefer to use lubricated
soft lead conical projectiles, and these often work best without a patch,
particularly if they are hollow-based. Always follow the instructions regarding
patches that are furnished by the manufacturer of the projectile (or bullet mold
if you cast your own bullets) that you chose. The best lubricants for patches are
vegetable-based greases, synthetic lubricants specifically designed for this use.
Petroleum-based lubricants often char the patches when fired and may leave
excess residue in the bore -- don’t use them to lubricate patches for bullets.

PERCUSSION CAPS
A percussion cap is a small metal cup, the interior top of which is coated with a
priming mixture. This priming mixture is usually covered with a foil or paper
liner. It fires when struck a blow.
The cap is placed on the nipple and when struck by the striker, the priming
compound explodes, igniting the powder charge.
The cap should fit the nipple only tightly enough so that it does not fall off when
the barrel is elevated with the bolt open. Do not attempt to use caps which are
too tight or try to force or pound caps onto the nipples, as a premature
discharge could result. Suggested cap size for the RUGER® MODEL 77/50
rifle is No. 11 (U.S.) or equivalent.
Since percussion caps have an open end (which is placed on the cylinder nipple
when you are ready to fire), they are susceptible to contamination. Be careful
when handling percussion caps, especially with oily fingers, and try to keep
water, grease, dirt and other contaminants out of the open end of the caps.
Failure to do so is the main cause of misfires in percussion muzzleloading
firearms.

WARNING–PERCUSSION CAPS
Percussion caps are designed
to fire as the result of a blow
(“percussion”).
A capped rifle loaded with
powder and ball is fully
loaded and will fire if the cap
is struck.
DON'T
STRIKE
CAP!

Never clean, lubricate,
disassemble, or work on a
rifle while it is capped or
loaded. Never install, remove,
or carry a capped nipple or
breech plug.
Always remove the
percussion cap before
unloading the barrel or
disassembling the rifle.

NEVER STRIKE A
PERCUSSION CAP

EYE AND EAR PROTECTION
Safety glasses must be used when loading and firing the RUGER® MODEL
77/50, or any percussion firearm. In percussion muzzleloaders, unlike cartridge
firearms, the thin percussion cap is the only seal against the hot gasses of main
powder charge, which can escape out of the nipple with great force when the
rifle is fired. Small pieces of the percussion cap are frequently blown away to the
side or rear when a percussion arm fires. Always wear hearing protection when
firing any firearm, in order to avoid permanent hearing damage.

TO LOAD AND FIRE
Practice this important aspect of gun handling (with an unloaded rifle) until you
can perform each of the steps – described below – with skill and confidence. But
before loading the rifle, please read completely through this manual, and be
certain the muzzle is pointing in a safe direction. Do not load the rifle until you
are ready to use it!
(The following procedure assumes a new rifle with the bolt out.)

INSERTING THE BOLT
1.

Be certain the barrel is empty by pointing the muzzle upward towards a
light source and glancing through the rear of the action at the rear end of
the nipple. You should see light through the hole in the nipple, indicating
that the barrel is empty. Keep the muzzle pointed in a safe direction, and
keep your fingers off the trigger throughout the assembly and loading
process until you are actually ready to fire. (See Rule 2, p. 43).

Position the safety selector in the “Load-Unload” position (see Figure 3,
p. 6).

Make certain the bolt is correctly assembled and ready to be inserted in the
receiver. If there is any doubt, see numbered paragraph 6, p. 33 (To
Assemble the Bolt) in the “Reassembly” section of this manual.

Note that if the breech plug is not screwed all the way into the receiver, the
bolt cannot be fully closed. Whenever you install the breech plug, be sure
that you coat its threads with grease in order to be able to remove it for
cleaning. (See p. 31).

Depress the bolt-stop and insert the bolt into the receiver.

WARNING: Please re-read carefully the paragraph entitled
“Warning - Black Powder”, p. 9.

In the interests of both performance and safety, it is important that steps which
follow be performed in sequence and with attention to detail:
1. BEFORE LOADING:
Lift the bolt handle and place the safety in the “load-unload” position. Remove
the bolt by pressing down on the bolt stop and withdrawing the bolt to the rear.
Look through the hole in the nipple with the barrel pointed toward a light
source to make sure the barrel is empty of powder or ball. Reinsert the bolt.
Check rifle to ensure that:
A. Nipple is uncapped.
B. Barrel is empty.
C. Bore and nipples are free of grease, oil or other obstruction.
2. CLEARING THE NIPPLES:
Without loading the barrel, place a percussion cap on the nipple. Point the
rifle in a safe direction, a few inches from some grass, leaves, or snow. Move
the safety to the full forward “fire” position, and pull the trigger to fire the
cap. You should see the grass, leaves, or snow move from the force of the
percussion cap. Repeat this process with a second cap. This is done to ensure
that the nipple passage is clear and dry.
Open the bolt, place the safety in the “load-unload” position and remove the
percussion cap and cap fragments.

! WARNING –LOADING

?
?

Know the bore diameter of your rifle you are loading and
load projectiles of only correct diameter into it! Either a
too tight or too loose projectile can cause a burst barrel,
resulting in serious injury to the shooter or bystanders.
This rifle is designed to use a .500” projectile (or a .490”
projectile with a .010 - .015” thick patch), a #11
percussion cap, and up to a maximum of 120 grains of
FFg black powder (or equivalent volume of Pyrodex RS)
only. Never use smokeless powder of any kind.
Before firing, be certain the percussion cap is seated
completely on the nipple. A rifle discharged by the
closing of the bolt on an incorrectly seated cap can
result in possible serious injury to the shooter and those
nearby.
If a projectile does not fully seat readily, do not force it.
Check to be certain that each projectile is the proper
caliber and of correct dimensions. If you cannot
determine why the projectile will not fit, carefully
remove the projectile, empty the rifle of all powder (see
pp. 20 - 22) and write or call the factory.
The wrong components or an excessive powder charge
can destroy your gun and result in serious injury to you
or bystanders.

BE SURE WHAT YOU LOAD
IS CORRECT
3. CHARGING THE BARREL:
A. Starting with the bolt open in its
full rearward position, place safety
in the “load-unload” position. (See
Fig. 5) Do not touch the trigger
while loading! Be sure that no cap
is on the nipple!

NIPPLE UNCAPPED
ACTION OPEN

SAFETY IN
"LOAD/UNLOAD"
POSITION

Safety

B. With one hand, hold the rifle
securely with the barrel pointing
straight upwards and the recoil
pad or butt plate on the ground.
Keep your face and other body
parts away from the muzzle!

MUZZLE UP

5
LOADING POSITION

C. Using a dipper or other single-charge
measure, pour the desired amount of
powder into the front opening (muzzle) of
the barrel. (See Fig. 6) Never exceed the
powder charge recommended for the
projectile you have selected from a
reputable black powder loading manual. Do
not pour powder directly from the flask or
other powder container (See “Black
Powder Warning”, p. 9)

BLACK POWDER
OR PYRODEX
ONLY!

6
LOADING POWDER
D. Place the bullet in the muzzle of the charged barrel, with the flat spot
(“sprue”) of the round ball or the point of a lubricated conical projectile
facing upward, out of the muzzle. (See Fig. 7) If you lubricate your
projectile, be sure to use a lubricant designed specifically for black
powder. Ordinary petroleum-based lubricants can cause fouling to build
up and make it difficult to fully seat the projectile on the powder charge,
with the resulting danger of a burst barrel and injury to the shooter and
bystanders.

CENTER BALL
ON PATCH

7
INSERTING CONICAL
PROJECTILE

8
OR

INSERTING
PATCHED BALL

E. If you wish to use a patch on your round ball for tighter fit or improved
sealing of the ball in the barrel, place a 1 1/2” diameter patch lubricated
with a commercial black powder gun grease centered over the muzzle
before you place a ball into the muzzle. (See Fig. 8) Again, align the sprue
of the bullet in the center of the bore facing upward, out of the muzzle.
(See Fig. 9, p.15) Some shooters now push the ball slightly into the
muzzle with a “short starter” rod of about 1” in length and then trim
away any excess patch material protruding from the muzzle, but this is
optional.

F. Remove the ramrod from under the barrel by pulling it downward out of
its recess in the barrel and then forward (upward) out of the stock and
ramrod thimble. Grasp the ramrod around its side and, with a firm even
stroke, seat the bullet firmly on the powder charge. Do not push down on
the ramrod tip with the palm of your hand, in the event that the powder
charge ignites while you are loading! (See Fig. 10) For maximum
accuracy, the powder charge should be very lightly compressed by the
bullet. Be sure that the bullet is seated deeply enough so that it rests
firmly against the powder charge. Do not leave an air space between the
powder and the bullet. This can cause the barrel to burst when firing!

KEEP HAND OFF END

NOTE RAMROD
PROTRUSION WHEN
PROJECTILE IS FULLY
SEATED ON POWDER

9
STARTING PROJECTILE

FULLY SEAT PROJECTILE

G. You should not “pound” on the ramrod to fully seat the projectile, since
this can deform the bullet, cause accuracy problems, or even set off the
powder charge and fire the rifle! Once you determine that you have fully
seated the projectile of your choice onto the correct powder charge, note
and mark how much of the ramrod protrudes from the muzzle. You
should always be sure that no more of the ramrod protrudes after loading
the rifle -- otherwise, you may have loaded too much powder, multiple
projectiles, or failed to have fully seated the ball onto the powder charge.
Firing a rifle with any of these conditions can result in a wrecked rifle
and injury to the shooter and bystanders. Be safe -- unload your rifle and
start over again if your ramrod protrudes excessively from the muzzle
after loading (See “To Unload”, p. 20)
H. REMOVE THE RAMROD FROM THE BARREL. If you replace it in the
thimble under the barrel, you will not leave it behind.
IF YOU FORGET TO LOAD POWDER
If you have inadvertently loaded a ball without first loading a powder
charge, you must remove the breech plug with the breech plug wrench
and push the ball from the barrel (See “To Unload”, p. 20) before starting
all over again.

4. CAPPING THE
NIPPLE:
Remember that the
safest way to carry
any loaded
muzzleloading rifle
is uncapped. Cap it
only just before you
are immediately
ready to fire. See
“Handling Warning”,
p. 17.

SAFETY IN
"LOAD/UNLOAD"
POSITION

NIPPLE
CAP

Safety

11
CAPPING THE NIPPLE

Be sure you use only #11 percussion caps of good quality and correct size.
With the bolt open, carefully place a #11 cap on to the nipple. An inline
capper, sold commercially, is preferred by some shooters. It is not required,
but is especially helpful if a scope is mounted on the rifle. Do not put oil,
grease, or dirt into the open end of the cap while loading -- misfires could
result. The caps should be completely seated on the nipple without undue
pressure. Caps should only be tight enough so that they do not fall off the
nipple when the barrel is elevated with the bolt open. (See Fig. 11)

WARNING: It is dangerous to attempt to use caps which are
too small. Never force a cap on to the nipple. Since caps fire by
percussion, excess force or a blow in seating them can cause the caps to
discharge, firing the gun and forcing hot gas out of the nipple, which can
cause injury.

5. PREPARING TO FIRE:
To normally fire the rifle, the bolt must first be closed after the nipple is
capped. This is done by pushing the bolt handle fully forward, and lowering it.
DO NOT TOUCH THE TRIGGER WHILE OPERATING THE BOLT. KEEP THE
SAFETY IN THE “LOAD-UNLOAD” POSITION WHILE OPERATING THE
BOLT, AND MOVE IT FULLY REARWARD TO THE “SAFE” POSITION AS
SOON AS THE BOLT IS CLOSED. TOUCH THE TRIGGER ONLY WHEN YOU
ARE READY TO FIRE AND HAVE DISENGAGED THE SAFETY WHILE
AIMING AT A TARGET.
6. FIRING:
Once the safety is pushed fully forward to the “fire” position, the RUGER
MODEL 77/50 is now ready to fire. Light pressure on the trigger will cause
the striker to fall forward, striking the percussion cap, and the rifle will fire.
Always be certain that you know where the bullet will strike when you fire the
rifle.

WARNING: DO NOT TOUCH THE TRIGGER UNTIL YOU ARE
ACTUALLY READY TO FIRE THE RIFLE.

Never allow the thumb to touch the cocking piece as it can be pinched when
the striker moves forward during firing.

SAFETY "OFF"

WARNING – HANDLING

CAP NOT
VISIBLE

Never cap the nipple until you are ready to
shoot the rifle. When capping, be sure that the
safety is in the “load-unload” position. After
capping, immediately place the safety in the
full-rearward “safe” position and keep it there
until you are actually aiming at a target or
game. Only when you are immediately going to
shoot should you move the safety fully forward
to the “fire” position.

STRIKER
UNCOCKED

STRIKER
COCKED

SAFETY
"ON"

If this rifle is to be carried loaded, certain
precautions must be observed in the interest of
safety. It is safest to carry any muzzleloader
with no percussion cap on the nipple. The gun
should never be carried with the striker resting
on a percussion cap. Under such
circumstances, a light accidental blow to the
striker can readily cause the gun to discharge.

CAP IS VISIBLE

However, the safety is a mechanical device and
any mechanical device can fail. Never depend
upon this or any other mechanical device to
justify careless handling of any firearm. Keep
the firearm pointed in a safe direction at all
times.

NEVER PUT THE STRIKER
DOWN ON A CAPPED
NIPPLE

WARNING – FIRING
When firing any rifle, be sure all persons are a
safe distance to the rear of the shooter. When
fired, all muzzle loaders discharge gas and
particles through the clearance gap between
the striker and the rear of the nipple. These
particles of powder grains and percussion cap
fragments are projected broadly sideways at
high speed and can injure a person who is
standing too close to the rifle. When firing any
muzzle loader, always be certain that nothing
– including either of your hands – is in the
path of the hot gas and particles which are
discharged from the top, front and sides of the
rifle. Small pieces of the percussion cap are
frequently blown away when a percussion arm
fires. Safety glasses must be used by shooters
and bystanders when loading and firing any
percussion firearm. Always wear hearing
protection when firing any firearm, in order to
avoid permanent hearing damage.

HOT GASES EXIT
NIPPLE AREA
17

Remember - Never lower the striker fully down onto a percussion cap or loaded
rifle! See “Handling Warning”, p 17.
WARNING: REMEMBER THAT EACH TIME A SHOT IS FIRED,
THE SAFETY SELECTOR IS IN THE “FIRE” POSITION.
WHEN YOU OPEN THE BOLT, MOVE THE SAFETY SELECTOR
TO THE “LOAD-UNLOAD” POSITION BEFORE CLOSING THE ACTION.
ONCE THE ACTION IS CLOSED, MOVE THE SAFETY FULLY BACK TO
THE “SAFE” POSITION.

WARNING – RELOADING
Black powder is extremely sensitive and a
powder charge poured down the barrel after
firing a shot can readily be ignited by an
ember of partially burned powder or glowing
patch fragment in the bore. Pushing a
projectile down onto a powder charge can
“fan” an ember into igniting the powder
charge and firing the rifle.
Always wait one minute before reloading. You
should wipe the bore with a cleaning patch
soaked in solvent between shots.
If a cap fires but the powder charge does not,
the powder may be smoldering and could
ignite at any time. Wait at least one minute
before attempting to recap. Remember that
hot gasses can escape from the nipple if the
powder charge ignites when the bolt is open,
and these gasses can burn you. Keep the rifle
pointed in a safe direction at all times.
Keep your head, face, eyes and hands away
from the muzzle while reloading and always
wear eye and hearing protection. Hold the
ramrod around its sides -- never place your
hand over the end of the ramrod so that it
would injure your hand if the powder charge
goes off (propelling the ramrod out) while
reloading.

DON’T LOAD IN A HURRY
7. RELOADING:
After firing, the striker will remain down. Raise the bolt handle, put the safety
in “load/unload”, and draw the bolt to the rear in a firm, smooth stroke. This
will expose the nipple so you can remove the fired cap fragments. Fragments
clinging to the nipple may be removed with the fingers, and fragments
clinging to the bolt can be dislodged by fully pulling the bolt back smartly
against the bolt stop. To fire subsequent shots, repeat all preceding steps 3 6, above. It is not necessary to fire a cap in between shots to clear the nipple,
but you should be sure that the nipple is clear before reloading. A thin wire or
similar tool works well for this.

Best results are obtained by cleaning the bore after each shot, before
reloading. Soak a patch in black powder solvent or bore lubricant, place it
over the front end of the ramrod, push it completely into the bore, and pull it
completely out of the muzzle. If it is difficult to remove, push the patch back
down and then up until it can be removed. This “swabbing” after each shot
makes reloading much easier. Never try to reload another projectile if it is
excessively difficult to push down the barrel -- you may not fully seat it on the
powder charge and it may act as a bore obstruction, resulting in a burst
barrel and possible serious injury to the shooter or bystanders. Instead, open
the bolt, pull the projectile out of the muzzle, empty out all powder, and
clean the barrel thoroughly before reloading.
DRY-FIRING: Going through the actions of cocking, aiming, and pulling the
trigger of an unloaded gun is known as “Dry Firing.” The Ruger Model 77/50
should not be dry-fired, as damage to the nipple may occur, which can prevent
the flame from the cap from fitting on the nipple correctly, or can prevent the
cap flame from igniting the powder charge.

WARNING – MISHANDLING

3 FIRE

2
LOADUNLOAD
1 SAFE

Never carry the rifle loaded with the
safety selector in the “FIRE” position. If
dropped or struck with the safety off, the
rifle may fire. Such a discharge can occur
with or without the trigger being directly
struck or touched. Never rest a loaded
rifle against any object (wall, fence,
vehicle, tree, etc.) because there is always
the possibility that the rifle will be jarred
or slide from its position and fall with
sufficient force to discharge. Keep safety
“on” unless actually firing.
Never lower (uncock) the striker onto a
percussion cap of a loaded rifle. Under
such circumstances the striker will be in
direct contact with the percussion cap
and a light accidental blow to the striker
can readily cause the gun to discharge.
If the rifle is dropped, the bullet should
be fully reseated against the powder
charge, or it might act as an obstruction
and cause the barrel to burst upon firing.
When afield, periodically check to see if
your bullet has remained fully seated on
the powder charge by inserting the
ramrod and pushing the projectile fully
downward onto the powder.

ANY GUN MAY FIRE IF
DROPPED
19

TO UNLOAD
(Keep rifle pointed in a safe direction)
Completely unload the rifle immediately when you are finished shooting (by
removing cap, powder and ball), or fire it into a safe backstop.
It is much easier and safer to fire any muzzleloading firearm rather than attempt
to unload it. However, if this is impossible, or if you are uncertain that correct
components have been safely loaded, the rifle should be unloaded in accordance
with the following steps.
1. Be sure the rifle is
pointing in a safe
direction.

PUT SAFETY IN
"LOAD/UNLOAD"
POSITION

2. Carefully place the
safety in the “loadunload” position. (See
Fig. 12) Keep fingers
away from trigger at all
times during
unloading!
SAFETY IN “LOAD/UNLOAD”
3. Open action
and carefully
remove the
percussion cap
and any cap
fragments or
priming
compound
from the
nipple. (See
Fig. 13)

OPEN ACTION

REMOVE CAP

Safety

SAFETY IN
"LOAD/UNLOAD"
POSITION

OPEN ACTION - REMOVE CAP
A

PRESS
BOLT STOP
DOWN
B

4. Depress bolt stop and
completely remove the
bolt rearward from the
receiver. (See Fig. 14)

PULL BOLT BACK
OUT OF RECEIVER

14
REMOVE BOLT

5. Using the breech plug
wrench supplied,
carefully unscrew the
breech plug from the
chamber. Keep it in the
breech plug wrench and
remove it out the rear of
the receiver.
(See Figs. 15a & 15b)
6. Carefully elevate the
muzzle and dump the
powder out of the rear of
the barrel into a container.
(See Fig. 16)

UNSCREW BREECH PLUG
COUNTERCLOCKWISE

15a
UNSCREW BREECH PLUG
REMOVE
BREECH
PLUG

7. Place some lubricating oil into
the barrel. Now place the ramrod
into the muzzle of the barrel,
taking care not to damage it.
Gently tap the end of the rod
until the ball comes out the rear
of the barrel and receiver.
(See Fig. 17)

15b
REMOVE BREECH PLUG
RAMROD

REMOVE
POWDER

16
REMOVE POWDER

REMOVE
PROJECTILE

TAP OUT PROJECTILE

8. Reinsert the breech plug using the wrench.
9. Inspect the chamber to be certain the bore is completely empty of powder
and ball, and that no cap or priming compound remains on the nipple.
10. Reinsert the bolt.
11. Move the safety selector to the “Fire” position and with the rifle pointed in a
safe direction, pull the trigger as you close the bolt and ease the bolt handle
downward. This uncocks the striker. “Dry Firing” is not advisable in the
RUGER® 77/50 due to possible nipple damage. Never uncock the striker
onto a percussion cap! (See “Handling Warning”, p. 17).
12. Once you know the rifle is completely unloaded and reassembled, run the
ramrod fully into the barrel and note how much of it protrudes from the
muzzle. If any more of the ramrod ever protrudes from the muzzle at any
time you run the ramrod fully into the barrel, you must assume that the rifle
is loaded -- be careful!

BASIC DISASSEMBLY AND REASSEMBLY
The user of a RUGER® 77/50 should carefully read all disassembly directions
and study all the illustrations and the Parts List in this manual before attempting
to take the gun apart. Know the names and location of the parts before removing
any of them. Although the rifle mechanism is composed of only a few parts, it is
essential that the disassembly and reassembly operations be carried out with
knowledge and care.
Only a few tools are required: A screwdriver or two to remove the trigger guard
screws and to remove the barrel band screw, and the supplied breech plug
wrench to unscrew the breech plug.
The tip of the screwdriver blade should perfectly fit the screw slots. A tip too
large will scrape away metal, while too small a tip will damage the screw slots.

! WARNING – DISASSEMBLY

LOADED

Never clean, lubricate, disassemble
or work on a rifle while it is loaded
or capped. Never install or remove
a capped nipple. A capped nipple
can discharge the rifle if struck.
Always unload any firearm before
cleaning, lubrication, disassembly,
or assembly. Read instructions
before disassembling gun.

UNLOAD BEFORE CLEANING
OR DISASSEMBLING
22

Before taking the gun apart, set up to do it properly. Cover the work surface with
a soft cloth so that the gun finish (and sights) will not be damaged, and provide a
tray into which the parts can be put as they are removed from the gun.
It is preferable to carry out these procedures on a workbench or table which has
a covered top. A piece of shallow nap rug or an old, coarse blanket is an ideal
covering. Such a covering not only reduces the chances of the rifle slipping and
being scratched, but it serves also to trap pins, plungers and springs that may
otherwise get lost. It is advisable to have a container – such as a shoebox – in
which each part can be placed as it is removed from the gun.
Before attempting to disassemble the rifle for the first time, study the parts
drawing and parts list so as to be familiar with the relative position, appearance
and name of each part. Carry out the disassembly slowly, and carefully note the
position of the part in the gun before starting to remove it. If a part is under
spring tension (such as, the Safety Selector, Bolt Stop, Trigger) remove it
cautiously and anticipate the direction the spring and plunger are most likely to
“jump.”
WARNING: If a spring or plunger become lost, do not use a substitute. Springs of
correct tension are vital to the safe and reliable performance of firearms. See
“Ordering Parts”, p. 39. Before starting disassembly, remove the sling, scope and
rings and place the rear sight blade in its down flat position.

DISASSEMBLY

(Rifle Must Be Unloaded Prior To Disassembly)
1. Keep the rifle pointed in a safe direction! Put the safety in the “load-unload”
position.
2. OPEN THE BOLT AND CHECK TO BE CERTAIN THAT THE RIFLE IS
UNCAPPED AND UNLOADED. Run the ramrod completely down the barrel to
make sure the rifle has no bullet or powder in the barrel.
3. TO REMOVE BOLT: Lift the bolt handle up. Depress the bolt stop on the left
side of the receiver. Remove the bolt from the rifle. (Before starting bolt
disassembly, study Figure 21).
4. TO DISASSEMBLE THE BOLT:
a. While holding the bolt, rotate the bolt sleeve clockwise (as viewed from
the rear of the rifle) to position shown in Figure 18, p. 24. The bolt sleeve
should be in the same position it is in when taken out of the receiver, but
the bolt sleeve may need to be rotated clockwise until the disassembly hole
is fully exposed.

b. Insert the small end of breech plug wrench handle (or suitable nail) into
the “disassembly hole” in the striker/cocking piece assembly to hold it in the
rear position (Figure 19). NOTE: The pin should be as close as possible in
size to the hole diameter, and at least 2 inches long so that it can be used to
‘lever’ the cocking piece to the rear when reassembling the bolt stop
assembly into the bolt. Do not use a soft paper clip, etc. Note that if you use
the breech plug handle as the bolt disassembly pin, you will be unable to use
the breech plug wrench to remove the breech plug until you reassemble the
bolt.

19
ROTATE BOLT SLEEVE

INSERT PIN

SAFE

c. Unscrew the bolt sleeve
counterclockwise (Figure 20).

20
UNSCREW BOLT SLEEVE

SAFE

d. Remove the bolt
sleeve assembly. (Figure
21).

REMOVE BOLT SLEEVE/STRIKER ASSEMBLY

CAUTION: The bolt sleeve assembly is intended to be a permanent
assembly and should not be disassembled. The parts are under great
spring pressure and if disassembled could fly apart with sufficient force to
cause serious injury. Also, special tools are required to correctly
reassemble this part.

5. TO REMOVE THE BREECH PLUG:
A

UNSCREW BREECH PLUG
COUNTERCLOCKWISE

BREECH PLUG WRENCH

22a

UNSCREW BREECH PLUG

a. Using the supplied breech plug
wrench and handle, carefully unscrew
(counter-clockwise) and remove the
breech plug/nipple assembly from the rear
end of the barrel. (See Figures 22a & 22b)
It is easier to remove the breech plug
from the receiver if you keep it in the
breech plug wrench as shown.

22b

B
REMOVE
BREECH
PLUG

REMOVE BREECH PLUG

6. TO REMOVE THE STOCK: (Be certain the bolt has been removed from the
rifle.)
a. Remove ramrod from stock. Unscrew barrel band screw and remove
barrel band forward off the stock and barrel. (See Fig. 23)

REMOVE ROD

C REMOVE
BAND

UNSCREW
BAND

23
REMOVE RAMROD AND BARREL BAND
b. Unscrew and remove the two screws in the trigger guard
counterclockwise and carefully remove trigger guard. (See Fig. 24) Note
that the longer screw goes in the rear hole of the trigger guard.

A UNSCREW

UNSCREW

C REMOVE GUARD

24
REMOVE TRIGGER GUARD
c. VERY CAREFULLY lift the barrel/receiver assembly from the stock. (See
Fig. 25)

BARREL/RECEIVER ASSEMBLY

STOCK

SEPARATE BARREL/RECEIVER FROM STOCK

THIS IS AS FAR AS YOU NEED TO DISASSEMBLE THE RIFLE FOR ROUTINE
CLEANING AND MAINTENANCE. SEE P. 30 FOR “REASSEMBLY”
INSTRUCTIONS. DETAILED DISASSEMBLY INSTRUCTIONS FOLLOW FOR
FURTHER DISASSEMBLY ONLY WHEN REQUIRED IN CASES OF HEAVY
FOULING, IMMERSION IN SALT WATER, ETC.

DETAILED DISASSEMBLY
1. To remove the trigger: (Safety Selector should be in the “Fire” position).
a. While holding the trigger in place, press out the trigger pivot pin.
(Caution: Trigger is spring loaded and under tension --- be careful!).
b. Remove the trigger and trigger/sear spring.
2. To remove the bolt stop and sear:
a. Press out the sear/bolt stop pivot pin.
b. Remove the bolt stop and bolt stop spring.
c. Turn receiver upside down and slide sear forward. Sear will drop out of
the top slot in the receiver.
3. To remove safety assembly:
a. Rotate the safety selector so that the upper section is positioned fully
over the center of the receiver tang.
b. While holding the safety selector in place with thumb and forefinger,
slide the retainer up out of receiver. (Caution: Safety Selector is under
spring tension from a spring and plunger acting against the lower section of
the safety selector. The spring and plunger will jump out if not contained).
c. Lift out the safety selector.
d. Remove the safety selector detent and safety selector detent spring.
See page 30 for “Reassembly” instructions.

CARE AND CLEANING

WARNING: ALWAYS BE CERTAIN THE RIFLE IS
COMPLETELY UNLOADED BEFORE CLEANING.
REMOVE CAP, POWDER, AND PROJECTILE.

BLACK POWDER FOULING
The chemical compounds formed by Black Powder and Pyrodex residue and
certain percussion caps are extremely corrosive; rusting will begin within a very
few hours after firing, if the rifle is left uncleaned under some conditions of
humidity. Fouling will also slow down or “bind up” moving parts, possibly
resulting in misfires (failure to fire), and “hangfires” (firing delayed up to a few
seconds). It is, therefore, important that your RUGER® MODEL 77/50 be
cleaned thoroughly and without delay after each use. Furthermore, Black Powder
fouling promptly hardens with the passage of time making disassembly difficult,
and this fouling is extremely corrosive, even to stainless steel.
A firearm must be free of rust, dirt, grease and firing residues to function safely
and reliably. Periodic maintenance, which includes inspection of components to
determine if they are in proper working order, is absolutely essential.

Firing deposits particles of bullet lubricant and powder in the bore, chamber,
bolt, receiver, and other parts of the rifle. There is no fixed rule as to how
frequently the cleaning should be carried out, but the alert gun owner soon
learns that any firearm functions most reliably and accurately when it is free of
accumulations of grease and other firing residues.
Basic cleaning equipment includes: A correct size cleaning rod equipped with
bore brushes (fiber and brass) and a tip in which a cloth patch can be inserted,
patches, powder solvent, lubricant, small lint-free cloths and a toothbrush. Use
correct size patches and brushes. Larger sizes will bind in the bore and can be
very difficult to remove!
Timely attention to the simple procedures which follow will help ensure that
your rifle remains in top condition for years of use:
1.

Be sure rifle is unloaded!

Remove bolt from receiver. (See p. 20)
It is not necessary to remove the stock
for cleaning, but removal may help
prevent damage to the stock from the
breech plug wrench handle, etc.
Removal also makes it easier to clean
the trigger and safety mechanism.

INSERT
CLEANING TUBE

THREAD FULLY

Disassemble bolt according to
instructions on pp. 23 & 24. Then,
place bolt components (except for
mainspring which should not be gotten
wet) in pan filled with very hot water
and soap solution to soak.

Unscrew and remove breech plug from
INTO RECEIVER
inside receiver. It may be necessary to
26
tap the breech plug wrench handle
with a soft mallet to loosen the breech
INSERTING
plug, especially after repeated firing.
CLEANING TUBE
Screw in cleaning tube to prevent
cleaning solution from entering receiver and stock of rifle.
(See Figure 26)

With muzzle pointed down so that water cannot enter the trigger
mechanism, flush the barrel with warm water, until water runs clear
from the muzzle. A cleaning patch wetted with hot, soapy water or an
ammonia-based window cleaner will also work.

Using a bristle or brass brush wetted with soap and water solution,
thoroughly scrub bore to remove all traces of fouling. Then, flush bore
again with very hot water. Do not permit water to enter the trigger
mechanism. Remove cleaning tube and carefully scrub receiver breech
plug threads clean. Clean the trigger mechanism thoroughly with a
brush wetted with a commercial black powder solvent. Dry bore and
receiver assembly thoroughly with clean cloth and set aside.

Thoroughly scrub bolt component parts in pan, flush with very hot water,
or ammonia-based window cleaner, rinse and then wipe dry. Scrub the
front of the bolt face with a toothbrush to remove all traces of powder and
cap fouling.

Soak the breech plug in very hot, soapy water or an ammonia-based
window cleaner. Scrub its threads with a toothbrush. Thoroughly dry the
breech plug, making sure the flash hole through the nipple is clean and
dry.

Inspect all parts (including bolt, barrel, receiver, trigger, etc.) to be sure
that these are clean and dry. Pay particular attention to the breech plug
threads inside the barrel.

10. Oil the bore and all parts thoroughly with a good quality gun oil, then reassemble. However, avoid lubricating the striker, striker spring, or the
inside of the bolt, to avoid oil spattering when firing or sluggish ignition in
cold weather. Remember to lubricate the breech plug/nipple assembly
threads with a good quality black powder gun grease prior to reassembly
(See page 30).
11. The outside (exposed) metal parts should be wiped down and lightly oiled
to remove fouling and prevent rusting.
NOTE: Several firms offer Black Powder solvents and these may be used in place of
the soap and hot water solution. However, not all smokeless powder solvents will
render the fouling left by Black Powder non-corrosive. Be sure you use a solvent
specifically intended for black powder fouling, hot, soapy water, or an ammoniabased window cleaner, followed by a good gun oil.
Sometimes, lead build-up can occur in the barrel throat at the muzzle of the barrel,
and in the bore. If ‘leading’ is noted in your rifle, clean it out before it builds up and
interferes with reliable functioning and accuracy. A special ‘lead removing’ cleaning
tool (for bore and chamber) is available from gun stores.

! WARNING – LUBRICATION

Firing a rifle with oil, grease, a bullet, or any
other material even partially obstructing the bore
may result in damage to the rifle and serious
injury to the shooter and those nearby. Do not
spray or apply lubricants directly on black
powder. If the powder charge is affected by the
lubricant, it may not be ignited, but the energy
from the percussion cap may be sufficient to push
the bullet into the bore where it may become
lodged. Firing the obstructed bore may damage
the rifle and cause serious injury or death to the
shooter and those nearby. In the event of a
misfire, always reseat the bullet fully onto the
powder charge before re-capping. Use lubricants
properly. You are responsible for the proper care
and maintenance of your firearm.

IMPROPER LUBRICATION
DESTROYS GUNS
29

The rifle’s internal mechanism can be lubricated without disassembly. A very few
drops of light oil recommended as suitable for firearms, applied periodically
about the various frame openings, will work its way into the mechanism parts.
The exterior of the rifle should be cleaned with a solvent and then wiped with an
oily cloth.
Do not keep a rifle in a leather, fabric or canvas case or scabbard when it is
stored. These materials attract moisture, even though they may appear to be dry.
12. Never store a loaded gun!

! WARNING – STORAGE
Never place or store any firearm in such a
manner that it may be dislodged. Firearms
should always be stored securely and
unloaded, away from children and careless
adults.

STORE SECURELY & UNLOADED

REASSEMBLY
(Again, Be Sure Rifle Is Unloaded)
1. To replace the safety assembly:
a. Place the safety selector detent and safety selector detent spring into the
hole in the receiver.
b. Set the safety selector in place with its upper section positioned over the
center of the receiver tang.
c. While holding the safety selector in place with thumb and forefinger,
slide the safety selector retainer into dovetail from the top. Align the notch
in the safety selector retainer with the sear pivot pin hole.
2. To replace the bolt stop and sear:
a. Replace the bolt stop and bolt stop spring. Partially insert sear/bolt stop
pin through bolt stop, spring and receiver (flush with sear slot).
b. Place the rear end (the end with the hole in it) of the sear into the slot
from the top of the receiver. Swing the rear end of the sear up and slide the
sear into position until the hole in the sear is aligned with the mating holes
in the receiver.
c. Press in sear/bolt stop pin until head of pin stops against bolt stop.

3. To replace the trigger:
a. Rotate safety to “fire” position.
b. Place the trigger/sear spring over the dimple in the trigger.
c. Assemble the trigger while aligning the spring with the dimple on the
sear.
d. While holding the trigger in position, replace the trigger pivot pin.
4. To replace the breech plug:

a. Lubricate the breech plug/nipple
assembly threads thoroughly with a
good quality black powder gun grease.
(See Figure 27) Do not lubricate the
back or nipple portions of the breech
plug. Failure to lubricate it will make
this part extremely difficult to remove.

DON'T PLUG
NIPPLE HOLE
BE

G
RI

THREADS

ALWAYS LUBRICATE
BREECH PLUG!

b. Using the supplied breech plug wrench, insert and tighten the breech
plug/nipple assembly into the threaded rear end of the barrel.
(See Figure 28) Do not over-tighten -- firmly snug will do. It will tighten
during firing.

A INSERT
WRENCH

TIGHTEN BREECH PLUG
CLOCKWISE

28
REPLACING THE BREECH PLUG

5. To replace the barrel/receiver assembly into the stock: (Caution: Be certain
that the pivot pins are not protruding from either side of the receiver.)
a. Carefully install the barrel/receiver assembly into the stock, making sure
the barrel/receiver assembly is in the most rearward position.
(See Figure 29)

29
INSERT BARRELLED ACTION INTO STOCK

b. Install the trigger guard and screws (shorter screw in front).
(See Figure 30)

A
SHORT SCREW
IN FRONT

REINSTALL TRIGGER GUARD

c. Slide barrel band over
barrel and rearward onto
the stock forend. Tighten
band screw when in place.
Replace ramrod in stock
through thimble under
barrel. (See Figures 31a,
31b, & 31c) Ramrod head
should rest in barrel cut
beneath muzzle.
Ramrod will not enter
stock easily if band
screw is tightened
excessively.

31a
REINSTALL BAND

TURN
SCREW
CLOCKWISE

31b
TIGHTEN BARREL BAND SCREW

THIMBLE

HEAD IN
NOTCH

31c

REINSTALL RAMROD

6. To assemble the bolt:
a. Lubricate the bolt sleeve
threads and the angled
cocking cam surface on the
rear of the bolt. Slide the
bolt sleeve assembly into
the bolt from the rear. Screw
the bolt sleeve into the bolt
to position shown (clockwise
past notch). (See Fig. 32)

SCREW BOLT SLEEVE INTO BOLT

b. Carefully remove the
wrench handle on pin from
cocking piece (See Fig. 33)
REMOVE PIN

c. Carefully rotate
counterclockwise until
cocking piece snaps into
small notch and no
further! Only when the
bolt is correctly
assembled should it be
inserted into the
receiver. (See Fig. 34)

SLOWLY ROTATE
COUNTERCLOCKWISE

STOP!
AT SMALL
NOTCH

34
FINAL BOLT ASSEMBLY

d. With safety in
“load/unload” (middle)
position, insert the bolt
into the receiver. (See
Fig. 35)

INSERT BOLT

Safety

SAFETY IN
"LOAD/UNLOAD"
POSITION

REINSERT BOLT

REGARDING ACCURACY
The accuracy of any muzzleloading rifle can vary depending upon the make and
type of projectiles and powder charge used in it. Such being the case, if your
RUGER® MODEL 77/50 rifle does not perform to expectations, it is
advisable to try several brands and types of projectiles to determine which one
delivers the best accuracy, before proceeding further. If your rifle is not as
“accurate” as you believe it should be, before concluding that some serious fault
exists, run the following checks:
1. Be certain the barrel band and the trigger guard screws are snugly
tightened.
2. Be certain the bore is clean and free from accumulated fouling
(deposited by black powder and lead bullets). See the “Care and
Cleaning” section of this Manual, pp. 27 - 30.
3. Check the sights, or scope mounting system, for tightness, setting and
alignment.
4. Try increasing or decreasing the powder charge you use, never
exceeding 120 grains of powder. The heaviest charges are usually the
least accurate and give the most powder fouling, making consistent
shot-to-shot accuracy difficult.

If everything is tight, the bore is clean, the sights are properly aligned and secure
but the accuracy problem persists, DO NOT alter the stock bedding in any way.
Do not scrape away wood, and do not bed with “glass,” plastic, epoxy, etc. Once a
rifle stock has been altered, it cannot be reworked by our Product Service
Department. If you still have an accuracy problem, write a brief letter to our
Product Service Department, 411 Sunapee Street, Newport, New Hampshire
03773 and describe the nature of the problem based on the use of the specific
components and load you use. You will receive a prompt response from us and if
indicated, detailed instructions with regard to the return of the rifle.

! WARNING – MALFUNCTIONS
➞

If the bolt hangs up, jams, or binds when
being closed, do not attempt to force it
forward by pushing or striking the bolt
handle.
Most failures to close are caused by improper
capping of the nipple, a dirty receiver, cap
fragments, or a breech plug not properly
screwed fully into the barrel.
Whatever the cause, the gun user must,
above all, recognize that jams can result in
the very potentially dangerous situation of a
percussion cap discharging the powder
charge before the bolt is closed. If this
occurs, cap fragments and hot gasses will fly
out of the gun with sufficient force to cause
injury. Always wear shooting glasses and
hearing protectors!

STRIKING PERCUSSION CAP
WILL FIRE THE RIFLE

TO CLEAR A MALFUNCTION (“JAM”)
If the rifle becomes difficult to operate, this can usually be traced to three basic
causes (followed by the appropriate corrective action):
1. Accumulated black powder fouling (cease firing & clean gun).
2. Percussion cap fragments inside receiver (carefully remove).
3. Percussion caps not fully seated on nipples (carefully reseat). Be sure you are
using the correct size cap (#11).
If it becomes necessary to disassemble the rifle to clear a jam, be sure to unload
it first. Never work on any gun with a percussion cap on the nipple!

MAINTENANCE OF
STAINLESS STEEL COMPONENTS
Firearms and components made of stainless steel are relatively more resistant to
corrosion than those of blued steel. However, in the interest of proper operation and
long life of a stainless steel firearm, inspect it frequently and clean, lubricate and
apply an appropriate rust preventative.
Sometimes surface discoloration occurs from perspiration or from contact with
some types of gun cases. Rusting may occur as a result of the firearm being exposed
to moisture, salt air or chemicals.
Minor discoloration can usually be removed by rubbing the stainless area with an
abrasive ink eraser, crocus cloth, or a “metal polishing” compound. When using any
of these abrasives, proceed with care and use light pressure to achieve a blending of
“color” with those areas that are not discolored.
External surfaces most subject to rusting from handling, or from exposure to the
elements should be cleaned and wiped dry after use or after exposure to adverse
conditions. If the rifle is to be stored, coat it with a light film of oil or preservative.
Where the rifle is in continuing use, and the presence of oil or grease would be
objectionable, then the external surfaces can be coated (after cleaning and drying)
with a paste wax formulated for use on metals. Apply the wax sparingly, allow time
for it to dry hard, then buff lightly with a soft cloth. When applying the wax, take
care that it does not get into the mechanism or on the functioning parts or in the
bore.

ATTACHING RUGER SCOPE RINGS
Each Ruger telescope ring is a mated assembly of a top and a base. Do not mix the
parts of the two ring assemblies as they are not interchangeable. On the underside
of each mounting ring assembly there is an integral lug, located off center with
respect to the front and back sides of the mount. The lug is nearer to the front
surface. By reference to the lug, the mounting ring can be correctly assembled with
the front of the ring toward the muzzle of the rifle.
1. Disassemble one ring and reassemble over the scope body between the turret and
the eyepiece. Remember - the lug on the base should be on the front side of the
scope.
2. Install the four top screws. Do not tighten.
3. Disassemble the other ring and install it on the forward section of the scope tube
with the lug forwardly also. Install the four top screws. Again, do not tighten.
4. Assemble the rings to the receiver with the lugs engaging the recesses in the top
surface of the receiver. Tighten the clamp nuts so that the rings are locked to the
semicircular cuts on the sides of the receiver.
5. Rotate the scope until cross-hairs are aligned properly and slide scope to desired
eye relief. Then tighten the eight top screws each a bit at a time to grip the scope
body.
6. Sight in according to the directions with your scope.

7. The bottom finish of a telescopic sight mounted over the action may be
damaged by hot gasses and cap fragments exiting the breech area when firing.
This should not affect the scope’s performance. Carefully clean all scope lenses
of fouling when you clean your rifle.
PLEASE NOTE THAT SOME STATES RESTRICT TELESCOPIC SIGHTS ON
MUZZLELOADERS USED FOR HUNTING -- CHECK YOUR LOCAL GAME
LAWS.

SIGHT ADJUSTMENT
The folding leaf rear sight is adjustable for elevation. The slide must be moved
one graduation to change the point of impact by approximately one inch at 25
yards. Shooting to determine the slide setting for ‘zero’ at a particular distance
should be done from a bench rest and over a measured distance. Use only a small
screwdriver with a blade tip that exactly fits the screw-head. Loosen the screws
only slightly so the slide doesn’t move too freely. Move the slide in the direction
you want the point of impact of the bullet to move. When the slide is positioned
at the desired height, carefully tighten both screws.
Lateral (windage) adjustment is made by “drifting’ the sight base in its slot. Place
a short brass rod against the sight base (and only the base) and tap the sight in
the direction you wish to move the point of impact.

SUGGESTED SIGHT PICTURE
Top of front sight even with top of
rear sight slide. Front sight
centered in notch of rear sight
slide. Target bull’s-eye centered on
top of front sight.

SERVICE AND PARTS POLICY
If you have any question with regard to the performance of your RUGER®
MODEL 77/50 rifle please write or call (603-863-3300) our Product Service
Department, 411 Sunapee Street, Newport, New Hampshire 03773, fully
describing all circumstances and conditions involved. If you should return your
rifle to the factory for repair, or order parts for it, please comply with the
following suggestions for prompt service:

WARNING: BEFORE SHIPPING ANY FIREARM, BE
ABSOLUTELY CERTAIN THAT IT IS UNLOADED.
DO NOT SHIP BLACK POWDER OR
PERCUSSION CAPS WITH A FIREARM.

SHIPPING FIREARMS FOR REPAIR
RUGER® MODEL 77/50 rifles returned to the factory for repair should be
sent to: Sturm Ruger & Company, Inc., Product Service Department, 411
Sunapee Street, Newport, New Hampshire 03773. Telephone (603) 863-3300.
Guns should be sent prepaid. We will not accept collect shipments.
The Federal Gun Control Act, as well as the laws of most States and localities, do
not prohibit an individual (who is not otherwise barred from purchasing or
possessing a firearm) from shipping a firearm directly to the manufacturer for
repair. However, before you ship your rifle to us, be certain that your State or
locality does not have a law or regulation which will prohibit you from receiving
the rifle from us after it has been repaired. If such receiving is prohibited, then
please have a Federally Licensed firearms dealer ship the gun to us. If your rifle
is sent to us by a dealer, it will be returned to him after being repaired. If a
handgun (pistol or revolver) is shipped by an individual who does not hold a
Federal Firearms License, it must be shipped via U.P.S. Persons who do not hold
a Federal Firearms License are prohibited by Federal law from shipping a
handgun by Mail. Handguns mailed in violation of the law are impounded by the
Post Office.
Please do not include rifle case, sling, telescopic sights or custom accessories
with a firearm being shipped to the factory for service. DO NOT SEND GUN
BOXES OR LITERATURE THAT YOU CONSIDER TO BE COLLECTOR’S ITEMS
– THESE ARE INVARIABLY DAMAGED OR DESTROYED IN SHIPMENT. Rifles
and shotguns may be shipped via Parcel Post. Always insure your shipment.
Enclose a letter which includes your name, address, telephone number, serial
number and model of the firearm. Describe in detail the trouble you have
experienced with your firearm, or the work you wish to have done. Merely stating
that the firearm “needs repair” is inadequate information.
Work performed will bear a net minimum labor charge of $15.00 plus a $5.00
shipping and handling charge. The charge for rebluing the Model 77/50 rifle is
$35.00 plus a $5.00 shipping and handling charge. Custom gunsmithing service
or non-standard alterations are NOT AVAILABLE from Ruger Product Service
Departments.

WARNING –PARTS PURCHASERS
It is the purchaser’s responsibility to be absolutely
certain that any parts ordered from the factory are
correctly fitted and installed. Firearms are
complicated mechanisms and IMPROPER
FITTING OF PARTS MAY RESULT IN A
DANGEROUS MALFUNCTION, DAMAGE TO THE
FIREARM, AND SERIOUS INJURY TO THE
SHOOTER AND OTHER PERSONS. The
purchaser and installer of parts must accept full
responsibility for the correct adjustment and
functioning of the firearm after such installation.

PARTS MUST FIT CORRECTLY

ORDERING PARTS
All parts orders for the MODEL 77/50 rifle should be sent to: Sturm, Ruger &
Co., Inc., Product Service Department, 411 Sunapee Street, Newport, New
Hampshire, 03773. We cannot comply with open account or C.O.D. requests.
Payment in the form of a check, money order, Visa or Mastercard must
accompany your order. Credit Card orders must include the account number,
expiration date and whether it is a Visa or Mastercard account. Minimum parts
order is $1.00 plus a $3.50 shipping and handling charge. Order parts by Part
Number and Part Name and include the entire serial number of the firearm for
which the parts are being ordered. The price shown for parts does not include
the minimum net labor charge of $15.00 plus $5.00 shipping and handling
charge if the parts are factory fitted. All factory-fitted parts are fitted on an
exchange basis only. We will not return the replaced parts.
Because the receiver of the Model 77/50 rifle (part number J00110) is a serial
numbered component, it is defined as a “firearm” by Federal law and is not sold
as a separate component.
*Parts designated by an asterisk must be factory fitted. These parts are fitted on
an exchange basis only. We will not return the replaced parts. We will not return
any part that is broken, malfunctioning, badly worn or has been modified. See
“Warning — Parts Purchasers”, above.

CAUTION: A gun containing modified, broken, malfunctioning,
or badly worn parts should not be fired.

PARTS LIST AND SUGGESTED RETAIL PRICES
Design, prices and specifications subject to change without notice.
SPECIFY MODEL AND CALIBER WHEN ORDERING

RUGER® MODEL 77/50 PERCUSSION RIFLE
(See Exploded View on Page 42)

Part Name
Accessory Kit - Includes: Cleaning Tube;
Breech Plug Wrench; & Wrench Handle
* Barrel
* Barrel
Barrel Band
Barrel Band Screw
Bolt Handle
Bolt Lock Plunger
Bolt Lock Plunger Retainer
Bolt Lock Plunger Spring
Bolt Sleeve
Bolt Stop
Bolt Stop
Bolt Stop Plunger Spring
Breech Plug
Breech Plug Wrench
Breech Plug Wrench Handle
Butt Plate
Butt Plate Screw, 2 Req’d
Cleaning Tube
Cocking Piece
Front Trigger Guard Screw
Front Sight, Assembly
Ramrod Assembly
Ramrod Support
Rear Mounting Screw
Rear Sight

Part No.
J29001

Model
All Models

0J8012
K0J8012
J06801
B-69
KJ01006
KJ02600
J04600
J04500
KJ01700
J05302
KJ5302T
J05401
KJ06705
J09001
J09100
C-63
B-64
J09300
KJ01800
J04705
J26016
J27105
J08406
J04800
J06100

77/50-RS, 77/50-RSO
K77/50-RSBBZ
All Models
All Models
All Models
All Models
All Models
All Models
All Models
77/50-RS, 77/50-RSO
K77/50-RSBBZ
All Models
All Models
All Models
All Models
77/50-RSO
77/50-RSO
All Models
All Models
All Models
All Models
All Models
All Models
All Models
All Models

Caliber
.50
•

Blued
$ 9.75

Stainless
–

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

65.00
–
6.00
.50
50.00
–
.50
.50
–
3.75
–
.50
–
6.00
1.00
2.50
ea. .50
3.00
–
.50
21.50
16.50
21.50
.50
13.00

–
$ 118.00
–
–
–
2.00
–
–
18.75
–
4.00
–
9.50
–
–
–
–
–
8.00
–
–
–
–
–
–

*
*

✝
✝

Receiver
Receiver Filler Screws, 2 Req’d, Not Illustrated
Receiver Filler Screws, 2 Req’d, Not Illustrated
Recoil Pad
Recoil Pad Screw, 2 Req’d.
Safety Selector
Safety Selector
Safety Selector Detent
Safety Selector Detent Spring
Safety Selector Retainer
Safety Selector Retainer
Scope Ring Clamp
Scope Ring Nut
Scope Ring Screws, 8 Req’d.
Scope Rings (Medium Rings)
Accommodates a 42mm Lens
Sear
Sear Pivot Pin
Sling Swivel Adaptor, Front
Sling Swivel Rear Mounting Stud
Stock, Birch, Complete
Stock, Black Laminated, Complete
Stock, Walnut, Complete
Striker Cross Pin
Striker Head
Striker Shaft
Striker Spring
Trigger
Trigger Guard
Trigger Pivot Pin
Trigger/Sear Spring

J00110
C-83Black
C-83
D06304
D-84
J03800
KJ03800
J04300
D-32
J02100
KJ02100
D-74
D-73
D-76
S-100RH

All Models
77/50-RS, 77/50-RSO
K77/50-RSBBZ
77/50-RS, K77/50-RSBBZ
77/50-RS, K77/50-RSBBZ
77/50-RS, 77/50-RSO
K77/50-RSBBZ
All Models
All Models
77/50-RS, 77/50-RSO
K77/50-RSBBZ
All Models
All Models
All Models
All Models

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

Not Offered For Sale
ea. .50
–
ea. .50
–
5.00
–
ea. .50
–
8.50
–
–
9.00
.50
–
.50
–
1.50
–
–
2.00
2.00
–
2.00
–
ea. .50
–
40.60
45.40

KJ02303
J04201
B08600
S-87
J20441
J20442
J20440
J04900
KJ01307
KJ01308
J01205
KJ02000
J00205
D-19
J02400

All Models
All Models
All Models
All Models
77/50-RS
K77/50-RSBBZ
77/50-RSO
All Models
All Models
All Models
All Models
All Models
All Models
All Models
All Models

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

–
.50
3.00
.75
145.25
–
______
.50
–
–
.50
–
40.00
.50
.50

5.25
–
–
–
–
______
–
–
7.50
1.25
–
10.50
–
–
–

* PARTS SO MARKED MUST BE FACTORY FITTED
✝ Contact the New Hampshire Service Dept. for current price. Be sure to have the complete serial number and model information before

calling (603) 863-3300.

RUGER® 77/50
PERCUSSION RIFLE
EXPLODED VIEW

THE BASIC RULES OF SAFE FIREARMS HANDLING
We believe that Americans have a right to purchase and use firearms for lawful
purposes. The private ownership of firearms in America is traditional, but that
ownership imposes the responsibility on the gun owner to use his firearms in a way
which will ensure his own safety and that of others. When firearms are used in a safe
and responsible manner, they are a great source of pleasure and satisfaction, and
represent a fundamental part of our personal liberty.
Firearms do not cause accidents! Firearms accidents are almost always found to have
been the result of carelessness, or ignorance on the part of the shooter of the basic
rules of safe gun handling.
The following rules must be observed by gun users at all times. Safe gun handling is
not just desirable, it is absolutely essential to your safety, the safety of others, and the
continuation of gun ownership and sport shooting as we know it today.

1. LEARN THE MECHANICAL AND HANDLING
CHARACTERISTICS OF THE FIREARM YOU ARE USING.
Not all firearms are the same. The method of carrying and handling firearms
varies in accordance with the
mechanical provisions for avoiding
accidental discharge and the various
proper procedures for loading and
unloading. No person should handle
any firearm without first having
Black Powder Only
thoroughly familiarized himself with
RUGER AL
the particular type of firearm he is
MANU
CTION
INSTRU
RUCTIONS
ST
using, and with safe gun handling in
IN
E
READ TH NINGS IN THIS
RE
AND WARCAREFULLY BEFO
L
general.
UA
.
AN
M
M
AR
THIS FIRE
®

USING

2. ALWAYS KEEP THE
MUZZLE POINTED IN A
SAFE DIRECTION.
Be sure of the bullet stop behind your
target, even when dry-firing. Never let
the muzzle of a firearm point at any
part of your body or at another person.
This is particularly important when
loading or unloading a firearm. In the
event of an accidental discharge, no
injury can occur as long as the muzzle
is pointing in a safe direction. A safe
direction means a direction which will
not permit a discharged bullet to strike
a person, or to strike an object from
which the bullet may ricochet.
43

A safe direction must take into account the fact that a bullet may
penetrate a wall, ceiling, floor, window, etc., and strike a person or
damage property. Make it a habit to know exactly where the muzzle of
your gun is pointing whenever you handle it, and be sure that you are
always in control of the direction in which the muzzle is pointing, even
if you fall or stumble. Keep your finger off the trigger until you are ready
to shoot.

3. FIREARMS SHOULD BE UNLOADED WHEN NOT IN
USE.

LOADED

Firearms should be loaded only
when you are in the field or on the
target range or shooting area,
ready to shoot. Firearms and
ammunition should be securely
locked in racks or cabinets when
not in use. Ammunition should
safely be stored separate from
firearms. Store your firearms out
of sight of visitors and children. It
is the gun owner’s responsibility
to be certain that children and
persons unfamiliar with firearms
cannot gain access to firearms,
ammunition, or components.

4. BE SURE THE BARREL IS CLEAR OF OBSTRUCTIONS
BEFORE SHOOTING.
Even a bit of mud, snow or excess
lubricating oil or grease in the
bore or an improperly seated bullet
may cause the barrel to bulge, or
even burst on firing, and can cause
serious injury to the shooter and
bystanders. Be sure that you are
using projectiles of the proper
caliber for the gun you are using.
If the report or recoil on firing
seems weak, or doesn’t seem quite
right, CEASE FIRING
IMMEDIATELY, and check to be
sure that no obstruction has
become lodged in the barrel. Never
try to shoot out an obstruction!

5. BE SURE OF YOUR
TARGET BEFORE YOU
SHOOT.
Don’t shoot unless you know
exactly where your bullet is going
to strike. Be sure of the bullet
stop behind your target, even
when dry-firing with an unloaded
gun. If you are in the field
hunting, do not fire at a
movement or noise. Take the time
to be absolutely certain of your
target before you pull the trigger.

6. WEAR SHOOTING
GLASSES AND HEARING
PROTECTORS WHEN
YOU SHOOT.
All shooters should wear
protective shooting glasses and
adequate hearing protectors when
shooting. Exposure to shooting
noise can damage hearing, and
adequate eye protection when
shooting is essential. Bits of
metal percussion cap and hot
powder gasses are ejected in
many directions when firing any
percussion muzzleloader.

7. NEVER CLIMB A TREE
OR FENCE WITH A
LOADED FIREARM.
Put the firearm down carefully
before climbing a fence, and
remove the cap or unload it before
climbing or descending a tree or
jumping over a ditch or other
obstruction. Never pull or push a
loaded firearm toward yourself or
another person. When in doubt, or
whenever you are about to do
anything awkward, remove the cap
or unload your gun!
45

8. DON’T SHOOT AT A
HARD SURFACE, OR AT
WATER.
Bullets can glance off many
surfaces like rocks or the surface
of water and travel in
unpredictable directions with
considerable velocity.

9. NEVER TRANSPORT A
LOADED FIREARM.
Firearms should always be
unloaded before being placed in a
vehicle. A suitable carrying case
or scabbard should be used to
carry an unloaded firearm to and
from the shooting area. With
muzzleloaders, it’s much easier
and safer to fire them into a safe
backstop before bringing them
into car, camp, or home.

10. AVOID ALCOHOLIC
BEVERAGES WHEN
SHOOTING.
Don’t drink until the day’s
shooting is over. Handling
firearms while under the
influence of alcohol in any form,
or medications that could affect
your judgment or co-ordination,
constitutes a criminal disregard
for the safety of others.

A BRIEF ACCOUNT OF AN EXTRAORDINARY
ACHIEVEMENT: RUGER FIREARMS
One of the few American firearms manufacturers whose management
has remained unchanged since starting in business, Sturm, Ruger &
Company, Inc., had its beginning in a small machine shop occupying a
rented frame building in Southport, Connecticut. In January, 1949, with
an initial investment of only $50,000 and an idea, William B. Ruger and
Alexander M. Sturm started production of a .22 caliber autoloading
pistol–a design which was so successful that it became the cornerstone
upon which one of the most comprehensive lines of sporting firearms
ever made in America was established. After Alex Sturm’s death in 1951,
William B. Ruger continued to direct the company alone and today, as
Chairman of the Board, he is actively involved in the creative
engineering of new products and continues to provide the leadership
which has made this 49-year-old company a sound and successful
enterprise.
Sturm, Ruger & Company, in this relatively short time, has established
itself as a leading small arms design organization, developing a unique
and broad line of fine quality sporting, military and police firearms to
become one of the world’s most famous producers of revolvers, pistols,
rifles and shotguns. From 1949 thru 1998 Ruger craftsmen have built
many millions of firearms.
During its four decades of growth and progress under the leadership of
William B. Ruger, the company has developed a business philosophy and
implemented policies which represent a constructive influence in the life
of modern America. From the beginning, Sturm, Ruger & Company
played a positive role in conservation efforts and has supported the
interests of the National Rifle Association, National Shooting Sports
Foundation, and many regional sportsmen’s organizations. The company
has always endeavored to market its firearms for constructive and
recreational purposes, to emphasize the traditional aspects of shooting,
to render meaningful public services and to encourage shooters in
constructive and responsible participation in the shooting sports.
Today, Sturm, Ruger & Company is particularly mindful of those
elements which have contributed to the creation of its success, and
extends heartfelt thanks to its many loyal employees and customers.

A current catalog of Ruger firearms is available free upon request to
Sturm, Ruger & Co., Inc., Southport, CT 06490
47

WHY NO WARRANTY CARD HAS BEEN
PACKED WITH THIS NEW RUGER FIREARM
The Magnuson-Moss Act (Public Law 93-637) does not require any
seller or manufacturer of a consumer product to give a written
warranty. It does provide that if a written warranty is given, it must be
designated as “limited” or as “full” and sets minimum standards for a
“full” warranty. Sturm, Ruger & Company, Inc. has elected not to
provide any written warranty, either “limited” or “full”, rather than to
attempt to comply with the provisions of the Magnuson-Moss Act and
the regulations issued thereunder. There are certain implied
warranties under state law with respect to sales of consumer goods. As
the extent and interpretation of these implied warranties varies from
state to state, you should refer to your state statutes. Sturm, Ruger &
Company wishes to assure its customers of its continued interest in
providing service to owners of Ruger firearms.

STURM, RUGER & Company, Inc.
Southport, Connecticut 06490 U.S.A.
http://www.ruger-firearms.com
A COPY OF THE INSTRUCTION MANUAL FOR ANY RUGER
FIREARM IS AVAILABLE FROM THE FACTORY FREE ON REQUEST.
THESE INSTRUCTION MANUALS CONTAIN IMPORTANT
WARNINGS WHICH MUST BE UNDERSTOOD
BEFORE USING THESE FIREARMS.

“RUGER”, the Sturm, Ruger logo, “SINGLE-SIX”, “BLACKHAWK”, “REDHAWK”, “SECURITY-SIX”,
“SPEED-SIX”, “SERVICE-SIX”, “BEARCAT”, “OLD ARMY”, “10/22”, “MINI-14”, “MINI THIRTY”,
“RANCH RIFLE”, “M77”, “77/22”, “GP-100”, “SP101”, “P-85”AND “VAQUERO”
are registered U.S. trademarks. “77/50” is a Ruger trademark.

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Ruger 77 50 Users Manual 77/50 For Pdf

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Ruger 77-50 Ruger 77-50

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