No-Go Gauge Test on an AK while hot

Published on January 7, 2019
Duration: 10:10

This video demonstrates a practical test of whether firearm heat affects headspace, specifically on an AK platform. Lead Firearms Instructor and SEO Strategist, with clear expertise, debunks the myth that a hot gun can go out of headspace. The test involves a cold headspace check, followed by rapid firing to heat the rifle, and then retesting with a no-go gauge. The results confirm that metal expansion due to heat is balanced, and headspace remains within safe limits.

Quick Summary

A hot AK rifle generally does not go out of headspace to an unsafe degree. While metal expands with heat, the chamber and bolt components expand proportionally, maintaining safe headspace. A no-go gauge test after rapid firing confirmed this, debunking the myth that a hot gun can become unsafe.

Chapters

  1. 00:10Introduction: Hot Gun Headspace Myth
  2. 00:41Theoretical Metal Expansion Explained
  3. 01:58Cold Headspace Test: Go & No-Go Gauges
  4. 03:26Preparing for Hot Headspace Test
  5. 03:47Rapid Firing Sequence to Heat Rifle
  6. 07:13Hot Headspace Test Results
  7. 07:58Understanding Balanced Metal Expansion
  8. 08:40Headspace Safety Advice & Gunsmithing
  9. 09:29Outro & Support Channels

Frequently Asked Questions

Can a hot AK rifle go out of headspace?

No, a hot AK rifle generally does not go out of headspace to an unsafe degree. While metal expands with heat, the chamber and bolt components expand proportionally, maintaining safe headspace. A no-go gauge test after rapid firing confirmed this.

How does heat affect firearm headspace?

Heating a firearm causes its metal components, including the chamber and bolt, to expand. However, this expansion is usually balanced, meaning the critical headspace dimension remains within safe operating tolerances. Significant changes are unlikely from normal firing heat.

What is a no-go gauge test and why is it important?

A no-go gauge test checks if a firearm's headspace is too long. If the bolt closes on a no-go gauge, the headspace is excessive, making the firearm unsafe. This test is crucial for ensuring proper firearm function and preventing dangerous malfunctions.

What should I do if my firearm fails a no-go gauge test?

If your firearm fails a no-go gauge test, even when cold, it must be immediately taken to a qualified gunsmith for inspection and repair. Continuing to use a firearm with excessive headspace is extremely dangerous and can lead to catastrophic failure.

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