Locking Device Installation Instructions

A WARNING - USE OF LOCKING DEVICES

®

• Always keep your firearm pointed in a safe direction, including when you are installing or removing your locking device.

• Always verify that your firearm is completely unloaded before installing your locking device.

• Do not install locking devices in the trigger guard; always keep your fingers, clamp and locking device outside the trigger guard during device installation and removal.

• Store firearms, ammunition and keys separately and securely, away from children and careless adults; do not store your firearm with the keys in the locking device.

• Do not attempt to work the action of your firearm with the locking device in place; this may damage your firearm.

• While locking devices are an important aid to security measures, they are not a substitute for safe firearm handling and proper storage. Remember that any mechanical device can be bypassed with enough time, knowledge, determination and equipment.

LOCKING DEVICES MUST BE USED SAFELY AND RESPONSIBLY

Use the Correct Lock: While the basic locking device is substantially similar for all Ruger® firearms, due to the different shapes of the many Ruger® firearms, some firearms utilize different locking devices. The 2 1/2" lock is for use with the M77 MARK II rifles. It is important to use the correct locking device!

To Install the Factory-Supplied Locking Device:

1. Keep the muzzle pointed in a safe direction and your fingers outside the trigger guard at all times!

2. Be sure the firearm and its magazine are completely unloaded and contain no cartridges or cartridge cases!

3. Open the action completely by drawing the bolt fully to the rear.

4. Release the floorplate latch and allow the floorplate to hang open.

5. Apply the lock directly to your M77 Mark II rifle as shown below.

6. Close the lock by pressing the shackle into the body of the lock (the part that receives the key) as tightly together as possible. The lock has bumpers and the shackle is coated with a non-marring material that will not harm the metal finish of your firearm; be careful not to dent or scratch the wooden stock.

7. Once the lock is securely closed, remove the key. Pull firmly on the lock to test the connection and be sure it is locked. Do not leave or store your firearm with the key in the lock! Store your locked unloaded firearm and the key in secure, separate locations, away from ammunition, children, or unauthorized adults.

Ruger Rifles M77

Correct Installation of Lock For Ruger® M77 Mark II Rifles Only

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 H 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.

A WARNINGS OF GREAT IMPORTANCE ARE

Mm. FOUND ON THE FOLLOWING PAGES:

Locking Devices 6

Unloading

17

Alterations 9

Malfunctions

18

Target Trigger 11

Disassembly

19

Manual Safety 12

Lubrication

24

Lead Exposure 13

Storage

25

Ammunition 14

Scope Mounting

28

Loading 14

Shipping

29

Handling 15

Parts Purchasers

30

Firing 16

OTHER CAUTIONS AND WARNINGS APPEAR

THROUGHOUT THE MANUAL.

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