How to Reline a 22 Rimfire Rifle Barrel Presented by Larry Potterfield | MidwayUSA Gunsmithing

Published on December 13, 2013
Duration: 9:34

This video demonstrates the process of relining a pitted .22 rimfire rifle barrel, specifically a Remington Rolling Block No. 4. Larry Potterfield details the disassembly, precise drilling of the old barrel, installation of a new liner using Loctite 680, chambering with a .22 LR reamer, and checking headspace. The process concludes with crowning the muzzle, filing the extractor slot, applying cold blue, and electrochemically marking the barrel for historical record.

Quick Summary

Relining a rifle barrel restores accuracy to worn or pitted bores. The process involves precise drilling of the old barrel on a lathe, installing a new liner with retaining compound like Loctite 680, reaming the chamber, and checking headspace with a go-gauge for .22 LR.

Chapters

  1. 00:00Introduction & Rifle Assessment
  2. 00:34Complete Rifle Disassembly
  3. 02:17Drilling the Barrel for Liner
  4. 04:01Installing the New Barrel Liner
  5. 05:00Chambering and Headspace Check
  6. 06:21Muzzle Crowning and Finishing
  7. 07:57Cleaning and Barrel Marking

Frequently Asked Questions

What is the purpose of relining a rifle barrel?

Relining a rifle barrel is a gunsmithing technique used to restore accuracy to firearms with worn or damaged bores, such as those with severe pitting. It involves drilling out the old barrel and inserting a new, smaller diameter barrel liner.

What tools are essential for relining a .22 rimfire barrel?

Essential tools include a lathe for precise drilling and chambering, a four-jaw chuck, dial indicator, specialized punches, a barrel vise, action wrench, a .22 LR reamer in a floating holder, and a headspace go-gauge.

How is a new barrel liner secured in place?

The new liner is typically scuffed for better adhesion, degreased, and then secured using a high-strength retaining compound like Loctite 680. After the compound cures, any excess liner material is trimmed.

What is the critical headspace measurement for a .22 LR cartridge?

For a .22 Long Rifle cartridge, the critical headspace measurement is typically checked using a go-gauge. The target rim thickness measurement is around 0.043 inches to ensure proper function and safety.

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