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Sturm, Ruger & Co.: Notice to Owners of Ruger M-77 Bolt Action Rifles. The trigger over-travel adjustment set screw in a few of these rifles may not be securely tightened and may move too readily. This change in original adjustment can, in extreme cases, either cause the rifle to fire unexpectedly (with the safety "off") or cause the rifle to not fire at all. This may occur suddenly, without warning.
Current production rifles have this set screw permanently secured. These rifles have a “T” inscribed on the under-side of the bolt handle. This condition cannot occur in any of our other firearms, such as the 77/22, 10/22, No. 1, No. 3, or the .44 Carbine, as their trigger mechanisms differ. For your safety, we ask that all owners of M-77 rifles (except those with a “T” underneath the bolt handle) contact us. You will receive a new locking screw that will replace your present over-travel adjustment set screw and detailed instructions for quick, easy installation. There is no charge for this service and replacing the screw will have no adverse effect on trigger pull. Do not use your M-77 rifle until you have received and installed the replacement screw.
Please affix (transparent tape is great) your present set screw to a note including your name, address and the serial number of your M-77 and mail to: Sturm, Ruger & Company, Inc., Dept. M-77, 140 Lacey Place, Southport, Connecticut 06490. [If you do not know which screw is the over-travel adjustment set screw,
Current production rifles have this set screw permanently secured. These rifles have a “T” inscribed on the under-side of the bolt handle. This condition cannot occur in any of our other firearms, such as the 77/22, 10/22, No. 1, No. 3, or the .44 Carbine, as their trigger mechanisms differ. For your safety, we ask that all owners of M-77 rifles (except those with a “T” underneath the bolt handle) contact us. You will receive a new locking screw that will replace your present over-travel adjustment set screw and detailed instructions for quick, easy installation. There is no charge for this service and replacing the screw will have no adverse effect on trigger pull. Do not use your M-77 rifle until you have received and installed the replacement screw.
Please affix (transparent tape is great) your present set screw to a note including your name, address and the serial number of your M-77 and mail to: Sturm, Ruger & Company, Inc., Dept. M-77, 140 Lacey Place, Southport, Connecticut 06490. [If you do not know which screw is the over-travel adjustment set screw,