Ruger M77 Scope Mounting

Published on April 21, 2009
Duration: 3:32

This expert guide details the process of mounting a scope on a Ruger M77 bolt-action rifle. It emphasizes crucial safety procedures, proper tool selection, and precise torque specifications for both the base and ring screws. The guide also covers selecting the correct ring height based on scope objective size and achieving proper eye relief and reticle leveling for optimal accuracy.

Quick Summary

To properly mount a scope on a Ruger M77, first ensure the rifle is unloaded and the bolt is removed. Secure the rifle in a vise and use the correct torque settings: 30 inch-pounds for base screws and 20 inch-pounds for ring screws. Select ring heights based on your scope's objective lens diameter and level the reticle for accurate shooting.

Chapters

  1. 00:00Safety Procedures and Unloading
  2. 00:30Required Tools and Preparation
  3. 00:53Ruger Receiver and Ring Design
  4. 01:13Selecting the Correct Ring Height
  5. 01:50Attaching Rings to Receiver
  6. 02:07Positioning Scope and Eye Relief
  7. 02:36Leveling Rifle and Scope Reticle
  8. 02:55Final Tightening and Torque Specs

Frequently Asked Questions

What are the recommended torque settings for mounting scope rings on a Ruger M77?

For the scope base screws on a Ruger M77, tighten to 30 inch-pounds. For the scope ring screws that secure the scope tube, tighten to 20 inch-pounds. Always use a torque wrench for accuracy and to prevent damage.

How do I choose the correct height for Ruger scope rings on an M77 rifle?

Ring height selection depends on your scope's objective lens diameter. For up to 32mm, use #3 (low) and #4 (medium). For up to 42mm, use #4 and #5 (high). For up to 52mm, use #5 and #6 (extra high).

What is the importance of leveling the scope reticle when mounting a scope on a Ruger M77?

Leveling the scope reticle ensures the crosshairs are perfectly square with the rifle's bore. This is crucial for accurate shooting, especially at longer distances, preventing errors caused by canting the rifle.

What safety precautions should be taken before mounting a scope on a Ruger M77?

Before any work, ensure the Ruger M77 is completely unloaded. Point it in a safe direction, keep your finger off the trigger, and visually check the chamber. It is also recommended to remove the bolt.

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