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 rifle, including Mark II and Hawkeye models. It emphasizes safety, proper tool selection, correct ring height selection based on objective lens size, and precise torque specifications for secure installation. The guide covers critical steps like achieving proper eye relief and ensuring the reticle is perfectly level for accurate shooting.

Quick Summary

Mounting a scope on a Ruger M77 involves ensuring the rifle is unloaded, using a vise, selecting correct Ruger rings based on objective size, and properly positioning the scope for eye relief. Crucially, level the reticle and use a torque wrench to tighten ring screws to 20 inch-pounds and base screws to 30 inch-pounds to prevent damage and ensure accuracy.

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 correct torque settings for mounting Ruger scope rings?

For Ruger scope rings, the base screws should be torqued to 30 inch-pounds, and the ring screws (top halves) should be tightened to 20 inch-pounds. Always use a torque wrench for accuracy and to prevent damage.

How do I select the right height for Ruger scope rings?

Ring height selection depends on your scope's objective lens diameter. For up to 32mm, use #3/#4 rings. For up to 42mm, use #4/#5 rings. For larger 52mm objectives, use #5/#6 rings.

Why is it important to level the scope reticle when mounting a scope?

Leveling the scope reticle ensures the crosshairs are square with the rifle's bore. This is critical for accurate shooting, especially at distance, as it prevents errors caused by canting the rifle.

What safety precautions should be taken before mounting a scope?

Before mounting a scope, always ensure the firearm is unloaded by checking the chamber and removing the bolt. Keep the firearm pointed in a safe direction with your finger off the trigger.

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