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
®
M77®MARK II 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
State-By-State Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Locking Device Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
General Information and Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . 9
Target Trigger Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Operation of Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ammunition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
To Load and Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
To Unload Rifle and Magazine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
To Clear a Malfunction (“Jam”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
To Minimize Malfunctions (“Jams”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Basic Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Maintenance of Stainless Steel Rifles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Attaching Ruger Scope Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Sight Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Sight Picture and Adjustment for Magnum and Express Models Only . . . . . . . .27
Special Instructions and Warning For Frontier Rifle . . . . . . . . . . . . . . . . . . . . .28
Service and Parts Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Shipping Firearms for Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 - 37
Parts Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 - 41
The Basic Rules of Safe Firearms Handling . . . . . . . . . . . . . . . . . . . . . . . . 42 - 45
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
“Ruger” & “M77” are registered U.S. trademarks.
8