Sporterizing the Mosin Nagant Part 1- Making sure your rifle is safe to shoot

Published on November 28, 2010
Duration: 12:38

This video details critical safety checks for sporterizing a Mosin Nagant M91/30, focusing on headspace and firing pin protrusion. It demonstrates bolt disassembly, extractor removal, and the use of headspace gauges. The rifle passes these essential safety tests, clearing it for further modification and shooting.

Quick Summary

The two critical safety checks for a Mosin Nagant before sporterizing are headspace and firing pin protrusion. Headspace is tested using gauges like the Field gauge, ensuring the bolt does not close. Firing pin protrusion should be between .075 and .095 inches, checked with the Mosin multi-tool.

Chapters

  1. 00:48Intro: Sporterizing Mosin Nagant Project
  2. 01:58Critical Safety Checks: Headspace & Firing Pin
  3. 02:42Understanding Headspace Gauges (Go, No-Go, Field)
  4. 03:45Bolt Disassembly for Headspace Testing
  5. 05:16Extractor Removal Procedure
  6. 07:28Performing the Headspace Test
  7. 09:37Checking Firing Pin Protrusion
  8. 11:35Conclusion & Next Steps

Frequently Asked Questions

What are the two most critical safety checks for a Mosin Nagant before sporterizing?

The two critical safety checks for a Mosin Nagant are headspace and firing pin protrusion. Ensuring these are within safe limits prevents dangerous malfunctions and ensures the rifle is safe to fire after modifications.

How do you check headspace on a Mosin Nagant?

To check headspace, you need to remove the bolt head and extractor, then use a Field headspace gauge. The bolt should not close on a Field gauge; if it does, the rifle is unsafe to fire.

What is the correct firing pin protrusion for a Mosin Nagant?

The correct firing pin protrusion for a Mosin Nagant should be between .075 and .095 inches. This is typically checked using the notches on the Mosin multi-tool to ensure proper ignition without risking primer issues.

Why is removing the extractor important for headspace testing?

Removing the extractor is crucial because it can interfere with the proper seating of the headspace gauge against the bolt face. This interference could lead to an inaccurate reading, potentially masking an unsafe headspace condition.

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