How to Mount Scopes, demonstrating Weaver Bases and Ruger Rings

Published on February 12, 2016
Duration: 45:53

This comprehensive guide, presented by a master gunsmith and expert instructor, details the process of mounting rifle scopes using Weaver bases and Ruger rings. It debunks the necessity of expensive alignment tools, emphasizing modern manufacturing tolerances. The guide covers essential cleaning, leveling techniques, and specific installation steps for both Weaver and Ruger proprietary systems, offering practical advice to ensure a secure and accurate scope mount.

Quick Summary

Expert instructor GunBlue490 explains that modern CNC machining makes scope lapping often unnecessary. Essential tools include a vise, leveling aids, cleaning supplies, and screwdrivers. Proper cleaning of all mating surfaces and specific techniques for Weaver bases and Ruger rings, like oiling Ruger ring contact points, ensure a secure mount.

Chapters

  1. 00:00Cost of Scope Mounting Tools
  2. 01:48Debunking Alignment and Lapping
  3. 03:23Receiver Specifications
  4. 10:29Essential Tools for Mounting
  5. 13:38Leveling the Rifle
  6. 15:38Cleaning and Preparation
  7. 17:38Mounting Weaver Bases
  8. 21:14Tightening and Recoil Management
  9. 29:01Mounting Ruger Proprietary Rings
  10. 33:53Final Leveling and Torque

Frequently Asked Questions

What are the essential tools needed for mounting a rifle scope?

You'll need basic tools like a gun vise, a tri-square or book for leveling, lint-free cloths, toothpicks, a Sharpie, and appropriate screwdrivers (Torx or Hex bits). Degreasers like Isopropyl Alcohol or Mineral Spirits are also crucial for cleaning surfaces.

Do modern rifle scopes and receivers require lapping?

According to expert instructor GunBlue490, modern CNC machining ensures receivers and high-quality rings are made to tight tolerances. Manual lapping is often unnecessary and can even be detrimental to the finish or alignment.

How can I prevent Ruger scope rings from loosening?

A common issue with Ruger's integral ring system can be addressed by applying a small drop of oil to the crescent-shaped mating surfaces. This helps the rings seat fully and securely when torqued down, preventing movement under recoil.

What is the importance of cleaning surfaces before scope mounting?

Cleaning all mating surfaces—receiver, bases, rings, and scope tube—with alcohol or mineral spirits is critical. This removes oils and contaminants that could cause slippage, ensuring a secure mount and maintaining zero under recoil.

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