How To Episode 13: Accurizing the ATI Mosin Nagant

Published on October 22, 2013
Duration: 24:18

This video details the process of accurizing an ATI Mosin Nagant by free-floating the barrel and bedding the action. Key steps include milling the polymer stock to remove barrel contact points and using Brownells Acraglas for a secure action fit. Proper application of release agent is crucial to prevent permanent bonding.

Quick Summary

To accurize an ATI Mosin Nagant, free-float the barrel by milling the stock's barrel channel to remove contact points. Then, bed the action using Brownells Acraglas, ensuring proper preparation with release agent and mechanical bond divots for a stable, accurate fit.

Chapters

  1. 00:00Introduction and Tools for Accurizing
  2. 01:54Goal: Free Floating the Barrel
  3. 03:06Milling the Stock Edges for Clearance
  4. 05:51Widening Forend and Barrel Channel
  5. 12:22Testing the Barrel Free Float
  6. 13:06Preparing Stock for Bedding (Divots)
  7. 15:59Applying Release Agent to Metal Parts
  8. 17:49Mixing and Applying Acraglas Bedding
  9. 21:07Setting Action and Final Torque

Frequently Asked Questions

What are the main steps to accurize an ATI Mosin Nagant?

Accurizing involves free-floating the barrel by milling the stock to remove contact points, and bedding the action for a stable fit. This process aims to eliminate variables that affect shot consistency and improve overall rifle accuracy.

How do you ensure the barrel is free-floating in a polymer stock?

You mill the barrel channel of the polymer stock using burrs to create clearance. After milling, test by sliding a piece of paper or a dollar bill between the barrel and stock; it should move freely without resistance.

What is action bedding and why is it important for accuracy?

Action bedding involves using an epoxy compound like Acraglas to create a solid, precise fit between the rifle's action and the stock. This eliminates movement and stress, ensuring consistent barrel harmonics and improved shot-to-shot accuracy.

What precautions are necessary when using Acraglas for bedding?

Crucially, apply a generous amount of release agent (like Brownells Acra-Release) to all metal parts. Without it, the epoxy can permanently bond the action to the polymer stock, making disassembly impossible.

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