Ammunition Cartridges Notice

WE SPECIFICALLY DISCLAIM RESPONSIBILITY FOR ANY DAMAGE OR INJURY WHATSOEVER OCCURRING IN CONNECTION WITH, OR AS A RESULT OF, THE USE IN ANY RUGER FIREARMS OF FAULTY, OR NON-STANDARD, OR REMANUFACTURED OR HAND-LOADED (RELOADED) AMMUNITION, OR OF CARTRIDGES OTHER THAN THOSE FOR WHICH THE FIREARM WAS ORIGINALLY CHAMBERED. Death, serious injury, and damage can result from the use of wrong ammunition, bore obstructions, powder overloads, or incorrect cartridge components. Even the strongest gun can...

Maintenance Of Stainless Steel Rifles

Metal Preservative Rust Preventative

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 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...

Ordering Parts

Please contact the New Hampshire Product Service Department for parts availability and current prices. All parts orders for the RUGER M77 MARK II should be sent to Sturm, Ruger & Co., Inc., Product Service Department, 411 Sunapee Street, Newport, New Hampshire, 03773, 603-8652442. 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...

Warning Malfunctions

If a cartridge hangs up, jams, or binds when being chambered or when being fed from the magazine into the chamber, do not attempt to force it into the chamber by pushing or striking the bolt handle. Most failures of a cartridge to feed or to chamber are caused by improper loading of the magazine or ammunition that is incorrect or defective. Whatever the cause, the gun user must, above all, recognize that jams can result in the very potentially dangerous situation of a cartridge discharging...

StateByState 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 dealer with firearms sold in that state. Sturm, Ruger sells its products in compliance with applicable laws and regulations. Because our products may be sold in these states, we include the following Children are attracted to and can operate firearms that can cause severe injuries or death. Prevent child access by always keeping...

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...

Brief Account Of An Extraordinary Achievement Ruger Firearms

One of the few American firearms manufacturers whose management has remained in the same family 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...

Basic Disassembly And Reassembly

Safety ind load-unloadd position Always unload a firearm before cleaning, lubrication, disassembly or assembly. 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...

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...

Operation Of Safety

The RUGER M77 MARK II rifle has a three-position safety. The safety selector is located at the right of the bolt sleeve on the left of the bolt sleeve on left-handed versions . The safety selector can be moved from the Fire position to its two other positions Load-Unload and Safe only when the firing pin is cocked. Fully raising the bolt handle cocks the firing pin. The bolt handle can be raised and lowered only when the safety selector is in either the Fire or the Load-Unload position. When...

Safety Positions

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 selector 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 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...

Ammunition

RUGER M77 MARK II rifles are chambered for many of the most popular factory-loaded cartridges manufactured in accordance with U.S. industry practice. The particular caliber for each rifle is rollmarked on the barrel. Use cartridges only of the designated caliber that is marked on the barrel. Please see Warning - Ammunition and Warning - Loading on page 14. Ruger M77 Mark II Express bolt action rifles are chambered for either the .270, .300 Magnum, 7mm, .338 Magnum, or .30 06 cartridges in all...

Be Sure The Barrel Is Clear Of Obstructions Before Shooting

Gun Barrel Obstructions

Even a bit of mud, snow or excess lubricating oil or grease in the bore 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 ammunition of the proper caliber and loading for the gun you are using. If the report or recoil on firing seems weak, or doesn't seem quite right, CEASE FIRING IMMEDIATELY, unload your firearm, and check to be sure that no obstruction has become lodged in the barrel. Never try to...

Sight Adjustment

For Standard Rifles Equipped With Open Sights The folding leaf rear sight is adjustable for elevation and windage. 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...

Component Parts List

Lee Enfield Exploded View

See Exploded View on Page 38 for Other Parts Key No. Part Name Part No. 1 Barrel Rib Dowel, Front S-152 2 Barrel Rib Dowel, Rear S-151 4 Barrel Rib Screws, 2 Req'd S-138 5 Barrel Rib Center Screws, 2 Req'd D06101 6 Scope Rings, Low, Sold as Pair S100RL 7 Scope Base Adapter D08800 Includes Key Nos. 7a amp 7b 7a Scope Base Screw, Front D06102 7b Scope Base Screw, Rear D06101

Nomenclature

Trigger guard Standard Model Shown Figure 1. Right-handed version shown. In this illustration the cocking piece is shown cocked protruding from the rear of the bolt sleeve . The bolt stop on the left side of the receiver permits the bolt to be withdrawn simply by pulling it out to the left. The safety selector should be in the Load-Unload position when the bolt is being removed or installed. trigger guard Standard Model Shown Figure 1. Right-handed version shown. In this illustration the...

General Information And Mechanical Characteristics

The RUGER M77 MARK tt is a bolt action, magazine fed, repeating rifle. The receiver on all versions of the RUGER M77 MARK tt rifle incorporates integral scope mount bases see the illustration on p. 10 . A set of two steel one-inch scope rings is included. Other notable features of RUGER M77 MARK H rifles include A three-position safety, a fast lock-time steel trigger mechanism, a patented bedding system, quick release hinged floorplate with a newly designed floorplate latch, cut-checkered...

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. CHECK TO BE CERTAIN THAT THE CHAMBER AND MAGAZINE ARE EMPTY. 3. To remove the bolt Open bolt and pull to the rear while at the same time pivoting open the bolt stop which is located on the left side of the receiver on the right-handed version and the right side of the receiver on the left-handed version. This is as far as you need to dismantle the rifle for a...

To Clear A Malfunction

If a jam occurs, immediately put the safety selector in the Load-Unload' position and be certain the muzzle of the rifle is at all times pointing in a safe direction. Then study the situation to determine the nature of the jam and how best to clear it. -If a cartridge or fired case is caught between the bolt and the barrel, or against a cartridge that is in the chamber, open the hinged floor plate and empty the cartridges from the magazine. Then retract the bolt fully and remove the jammed...

M Mark 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 M77 MARK H 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 crisp and light. You should practice dry-firing an...

Attaching Weaver Scope Base Adapter for nonRuger rings

Ruger Mkii Scope Rail

Remove the two barrel screws Key Nos. 4 amp 5 as shown in Figure 5a. Do not remove the two remaining screws. 2. Attach the sight base Key No. 7 using the two screws removed in step 1, and the two screws Key Nos. 7a amp 7b provided with the base as shown in Figure 5b. Be careful to locate the screws in the correct holes as shown in Figure 5b. Apply a removable liquid threadlocker per the manufacturer's instructions. The Ruger M77 Mark II Frontier Rifle is a compact rifle with a shorter stock,...

Reassembly

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 while applying downward pressure, slide the safety selector retainer into dovetail from the top. Align the notch in the safety selector retainer with the sear pivot pin hole. a. Place...

To Load And Fire

Practice the important aspects of gun handling described below with an unloaded rifle until you can perform each of the steps 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 . 1. Keep the muzzle pointed in a safe direction See Rule 2, p. 42 . 2. Position the safety...

Locking Device Installation Instructions

Ruger Rifles M77

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...

Sight Picture And Adjustment For Magnum And Express Models Only

Notch Rifle Sights

Both the Ruger Magnum and Express bolt action rifles are equipped with special Express type folding leaf rear sights mounted on a base dovetailed into the solid barrel rib. The nonfolding leaf is set for approximately 50 yards. Use whichever leaf is appropriate for the type of shooting you anticipate. Changes in elevation can be made by raising or lowering the different sight leaves. Lateral windage adjustment is made by loosening the rear sight base lock screw located atop the rib immediately...

Parts List

Ruger M77 Mark Wood Insert For Stock

Design, prices and specifications subject to change without notice. SPECIFY MODEL AND CALIBER WHEN ORDERING See Exploded Views on Pages 38 - 41 Bolt Stop Plunger Spring Retaining Pin Bolt Stop Plunger Spring Retaining Pin Bolt Stop Stud Screw - Stainless Models Standard, Ultra Light, Left-handed, Express, Magnum, International, Compact Ultra Light, Left-handed, Sporter, Compact All Blued Models All Stainless Models Standard, Ultra Light, Express, Magnum, International, Compact All Blued Models...

Warningtarget Trigger

This precision Target trigger has been carefully adjusted at the factory to a minimum safe weight of pull part D02202 , overtravel part D02201 , and sear engagement part D02201 . Do not alter any factory setting You can create an unsafe condition and the rifle may fire unexpectedly. You should be especially careful to keep the safety on at all times except when actually firing and keep your finger off the trigger unless you are squeezing it to fire, in order to minimize the possibility of...