How to Install a Short Chambered Barrel Presented by Larry Potterfield | MidwayUSA Gunsmithing

Published on August 12, 2013
Duration: 4:19

This guide details the process of installing a short-chambered barrel on a Remington Model 700 action, as demonstrated by expert gunsmith Larry Potterfield. It covers essential tools, precise measurements, and the critical steps of chambering and headspacing using specialized gauges and reamers. The instruction emphasizes methodical work and safety, crucial for achieving proper firearm function and accuracy.

Quick Summary

Expert gunsmith Larry Potterfield demonstrates installing a short-chambered barrel on a Remington Model 700. Key steps include using an action wrench, barrel vise, finish reamer, and PTG headspace gauges. Proper lubrication and verification with 'GO' and 'NO-GO' gauges are critical for safe and accurate headspacing.

Chapters

  1. 00:00Introduction to Modern Barrel Fitting
  2. 00:53Required Gunsmithing Tools
  3. 01:20Measuring and Component Fit
  4. 02:06Barrel Installation
  5. 03:02Finish Chambering and Headspacing

Frequently Asked Questions

What are the essential tools for installing a short-chambered barrel?

You'll need an action wrench, a barrel vise, a finish reamer with a T-handle, cutting oil, grease, and crucial headspace gauges (GO and NO-GO) to ensure proper chamber dimensions and safe operation.

How is headspace checked during barrel installation?

Headspace is checked by first ensuring the bolt closes on a 'GO' gauge after finish reaming. Then, critically, the bolt must NOT close on a 'NO-GO' gauge to confirm the chamber is within safe tolerances.

What is the 'three rings of steel' concept in a Remington 700 action?

This design refers to how the cartridge fits the bolt face, the bolt fits into the barrel's recess, and the receiver holds the barrel. This multi-point lock-up contributes to the action's strength and safety.

Why is lubrication important when reaming a barrel chamber?

Lubrication with cutting oil is vital to prevent the reamer from galling or binding in the steel, ensuring a smooth, clean cut and preventing damage to the tool and the workpiece.

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