Ruger 7750, Firearm Manuals

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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
TM
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 77/50
TM
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.
“77/50
TM
” is a trademark of Sturm, Ruger & Co., Inc.
2
!
WARNINGS OF GREAT IMPORTANCE ARE
FOUND ON THE FOLLOWING PAGES:
Alterations
3
Firing
17
Manual Safety
7
Reloading
18
Lead Exposure
7
Mishandling
19
Ammunition
8
Disassembly
22
Black Powder
9
Lubrication
29
Percussion Caps
11
Storage
30
Loading
13
Malfunctions
35
Handling
17
Parts Purchasers
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.
3
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.
4
NOMENCLATURE
Recoil Pad
Barrel
Muzzle
Stock
Barrel Band
Front Sight
Front Sling
Swivel
Ramrod
Thimble
Rear Sling
Swivel
Ramrod
Ramrod Tip
Safety
(Shown “ON”)
Scope Mount Bases
Rear Sight
Nipple
Bolt Handle
Bolt
Receiver
Bolt Sleeve
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.
5
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Ruger 7750, Firearm Manuals

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