Ruger M-77 Mark II Instruction Manual

INSTRUCTION
MANUAL
FOR
RUGER®
M-77®MARK II
BOLT-ACTION RIFLES
For Product Service on This Model Please Call:
(603) 865-2442 (See p. 27)
STURM, RUGER & Company, Inc.
Southport, Connecticut 06890 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.
KD & KDM 2/03 R10
READ THE INSTRUCTIONS AND
WARNINGS IN THIS MANUAL CAREFULLY
BEFORE USING THIS FIREARM
!
BLUED &
STAINLESS...

3
WARNING!
“Children are attracted to and
can operate firearms that can
cause severe injuries or death.
Prevent child access by always
keeping guns locked away and
unloaded when not in use. If you
keep a loaded firearm where a
child obtains and improperly uses
it, you can be fined or sent to
prison.”
ADVERTENCIA!
State-By-State Warnings
Certain states require by law that their own specified warning
notices in larger-than-normal type be conspicuously included by
the manufacturer, distributor, or retail...

4
Maine:
“ENDANGERING THE WELFARE OF A CHILD IS A
CRIME. IF YOU LEAVE A FIREARM AND AMMUNITION
WITHIN EASY ACCESS OF A CHILD, YOU MAY BE
SUBJECT TO FINE, IMPRISONMENT OR BOTH. KEEP
FIREARMS AND AMMUNITION SEPARATE. KEEP
FIREARMS AND AMMUNITION LOCKED UP. USE
TRIGGER LOCKS.”
Maryland:
“WARNING: Children can operate firearms which may cause
death or serious injury. It is a crime
to store or leave a loaded
firearm in any location where an individual knew or should
have known that an unsupervised minor would...

5
New Jersey:
“IT IS A CRIMINAL OFFENSE TO LEAVE A LOADED
FIREARM WITHIN EASY ACCESS OF A MINOR.”
New York City:
“THE USE OF A LOCKING DEVICE OR SAFETY LOCK IS
ONLY ONE ASPECT OF RESPONSIBLE WEAPONS
STORAGE. ALL WEAPONS SHOULD BE STORED
UNLOADED AND LOCKED IN A LOCATION THAT IS
BOTH SEPARATE FROM THEIR AMMUNITION AND
INACCESSIBLE TO CHILDREN AND ANY OTHER
UNAUTHORIZED PERSONS.”
North Carolina:
“IT IS UNLAWFUL TO STORE OR LEAVE A FIREARM
THAT CAN BE DISCHARGED IN A MANNER THAT A
REASONABLE PERSON SHOULD...

This firearm was originally sold
with a key-operated locking
device. While it can help provide
secure storage for your unloaded
firearm, any locking device can
fail. All guns are designed to fire if
they are loaded and the trigger is
pulled. Therefore, never install the
locking device inside the trigger
guard or in any way that it can
possibly pull the trigger!Do not
leave the keys in the lock.
The ultimate responsibility for
secure storage of any firearm must
depend upon its owner and his or
her...

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®M-77®MARK IIrifle 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...

WARNINGS OF GREAT IMPORTANCE ARE
FOUND ON THE FOLLOWING PAGES:
Locking Devices 6 Firing 15
Alterations 8 Unloading 16
Target Trigger 10 Malfunctions 17
Manual Safety 11 Disassembly 18
Lead Exposure 12 Lubrication 23
Ammunition 13 Storage 24
Loading 13 Parts Purchasers 28
Handling 14
OTHER CAUTIONS AND WARNINGS APPEAR
THROUGHOUT THE MANUAL.
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...

9
All mechanical components are made of heat-treated chrome-molybdenum or
stainless steel with music wire coil springs throughout the mechanism (except
the magazine spring). The rifle is available in short, standard, and magnum
action lengths, and in right-hand and left-hand versions.
The RUGER
®M-77®MARK IIMagnumRifles are the first true “magnum
length” actions offered by Sturm, Ruger. By combining a specially reinforced and
lengthened receiver with a massive banded barrel, with an integral solid rib...

10
SPECIAL SAFETY NOTE
M77 MK II TARGET RIFLE ONLY
The special model you have selected is specifically designed for long-range
precision target shooting. As such, it demands that you take extra safety
precautions.
The special trigger in the Target version of the RUGER
®M-77®MARK II
has a two-stage pull, both for safety and precise placement of shots. Initial
movement of the trigger is relatively “slack” until resistance is felt after
approximately 1/8” of travel. Final let-off of the trigger is then...

11
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, 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 load a cartridge, or
to unload a live round. As...