Smyth Busters: Is It Necessary To Lap Scope Rings?

Published on December 22, 2020
Duration: 3:27

This guide, presented by Caleb and Steve from Brownells, explains the purpose and necessity of lapping scope rings. It details how to check for proper scope ring alignment, emphasizing the importance of a precise fit to avoid damaging the scope tube or affecting its performance. The video highlights that while modern precision mounts may not require lapping, it remains a plausible and sometimes essential step for ensuring optimal scope performance and longevity.

Quick Summary

Lapping scope rings ensures a precision fit, aligning the inside of the rings with the scope tube for even contact and preventing uneven pressure. This is crucial to avoid crimping or tension on the scope tube, which can damage the scope or affect its performance. While precision mounts may not need it, checking alignment is key, especially with less precise bases.

Chapters

  1. 00:04Introduction: Lapping Scope Rings
  2. 00:27Purpose of Lapping Rings
  3. 01:03Precision Mounts vs. Standard Rings
  4. 01:45When Lapping is Needed
  5. 02:14Avoiding Scope Tube Damage
  6. 02:23Conclusion: Lapping is Plausible
  7. 03:04Call to Action

Frequently Asked Questions

What is the main purpose of lapping scope rings?

The primary purpose of lapping scope rings is to achieve a precision fit between the scope and the rings. This ensures the inside surfaces of the rings are perfectly aligned with the scope tube, providing even contact and preventing uneven pressure that could damage the scope.

When is lapping scope rings typically necessary?

Lapping is often necessary with less precise mounts or bases that may not be perfectly machined, leading to misaligned scope rings. It's crucial to avoid crimping or putting tension on the scope tube, which can negatively impact its performance and durability.

How can I check if my scope rings are properly aligned without lapping?

To check alignment, place the bottom halves of your scope rings on the rifle's rail. Then, gently set the scope into these bottom halves and observe if it drops in freely. If you see light around the edges or need to force the scope down, alignment issues may be present.

Are one-piece scope mounts always better than two-piece mounts regarding alignment?

One-piece precision machined mounts are often designed not to require lapping due to their manufacturing accuracy. However, high-quality two-piece mounts can also be precisely machined and offer excellent alignment, especially when mounted on a good, solid, and accurately machined rail.

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