Quick Tip: Common Scope-Mounting Mistakes To Avoid

Published on February 15, 2023
Duration: 8:21

This guide, presented by Brownells experts Steve and Caleb, details common scope mounting mistakes and best practices. It emphasizes maintaining proper clearance, adhering to torque specifications, and selecting appropriate mount height for platforms like the AR-15 to ensure accuracy and usability. The instruction draws on extensive gunsmithing experience to help shooters avoid common pitfalls.

Quick Summary

Proper scope mounting is crucial for rifle accuracy. Key mistakes to avoid include mounting rings too close to scope housings, failing to use correct torque, and insufficient clearance from the barrel. AR-15s require higher mounts for optimal cheek weld. Always use a torque wrench and ensure the scope is level for predictable adjustments.

Chapters

  1. 00:00Introduction to Scope Mounting Mistakes
  2. 00:25Ring Clearance Issues
  3. 01:45Importance of Solid Mount & Torque
  4. 02:07Scope Clearance from Barrel/Base
  5. 02:44AR-15 Mounting Height & Cheek Weld
  6. 03:56Avoiding Over-tightening Scope Tubes
  7. 05:01Ring Materials for Recoil Management
  8. 06:10Modern Tactical Mount Solutions
  9. 07:22Final Alignment and Leveling

Frequently Asked Questions

What is the most common scope mounting mistake?

A frequent error is mounting scope rings too close, with them touching the scope's turret housing, objective bell, or eyepiece, which can severely impact accuracy. A small gap must always be maintained.

Why is proper torque important when mounting a scope?

Applying the correct torque to scope ring screws is critical. Insufficient torque can lead to a shifting zero and poor shot groups, while over-tightening can crush the scope tube, damaging the optic.

Do AR-15s require different scope mounts than traditional rifles?

Yes, AR-15s generally need higher scope mounts than traditional bolt-action rifles. This is due to the AR platform's straight stock geometry, which necessitates a taller mount for a proper cheek weld and sight picture.

What is the purpose of maintaining clearance between the scope and the rifle?

Ensuring the scope only touches the rings, and has clearance from the barrel, base, or lens covers, is vital. Any unintended contact can disrupt the scope's alignment and negatively affect shooting accuracy.

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