The QA September 2020

Published on September 28, 2020
Duration: 23:36

This guide details the process of boresighting and leveling a rifle scope, emphasizing precision and alignment for accurate shooting. It covers using specialized tools like the Arasaka scope leveler and a machinist level for proper scope mounting, along with a practical 'redneck method' for initial boresighting. The advice is presented from the perspective of an experienced firearms instructor, highlighting the importance of a level setup for dialing adjustments.

Quick Summary

To boresight a rifle scope, use the 'redneck method': look down the unloaded barrel at a distant object and align the scope's reticle to that point. For ARs, confirming it's on paper at 25 yards is often enough. Ensure the scope is perfectly level using tools like the Arasaka Scope Leveler after leveling the firearm itself.

Chapters

  1. 00:00Introduction & Q&A Format
  2. 00:58Comment Cleanup & Submitting Questions
  3. 03:01Gunsmithing Tools & Shop Tour Request
  4. 05:40AR Safety Selector Spring Length
  5. 09:40Recommended Vice for Gun Repairs
  6. 17:30Hearing Protection Recommendations
  7. 22:00Sponsor: Lucky Shot Glassware
  8. 24:30Boresighting & Leveling Rifle Scopes
  9. 34:00Shotgun Only Deer Zones & Bushmaster 450
  10. 37:40AR Magwell Undersized / PMAG Fit Issues
  11. 42:40Prize Winner Announcement
  12. 44:00Outro & Subscribe

Frequently Asked Questions

What is the best way to boresight a new rifle scope?

For boresighting, a reliable method is the 'redneck method': look down the bore of the unloaded firearm at a distant object, then align the scope's reticle to that point. For AR platforms, simply ensuring the optic is on paper at 25 yards is often sufficient before zeroing.

How can I ensure my rifle scope is perfectly level?

To level a scope, first secure the firearm in a vice and ensure the firearm itself is level using a precision machinist level. Then, use a dedicated scope leveling tool, like the Arasaka Scope Leveler, to align the reticle precisely with the barrel.

Why might PMAGs not drop-free from my AR-15 lower?

Mil-spec for AR-15 lowers is based on metal USGI magazines. Polymer magazines like PMAGs can be slightly larger and may not drop-free from all mil-spec compliant lowers. Some BCM lowers with flared magwells accommodate PMAGs better.

What are the best hearing protection options for shooting?

For active shooting, electronic in-ear protection like the Auto Micro ($400) is excellent. For passive protection, custom-molded earplugs offer superior comfort and fit compared to foam or screw-type options, typically costing around $40-50.

What type of vice is recommended for gunsmithing?

A pipe-type vice with a rotating and tilting head is highly recommended for gunsmithing. This allows for greater control and manipulation of the firearm or parts, making tasks like stippling or receiver work much easier than with a traditional shop vice.

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