How to Make New Leaf Springs | British Side-by-Side Shotguns | MidwayUSA

Published on March 17, 2014
Duration: 16:13

This guide details the advanced gunsmithing process of creating new leaf springs for British side-by-side shotguns, as demonstrated by English-trained gunsmith Jack Rowe. The process involves shaping spring steel bar stock, heat treating, hardening, and tempering to achieve the correct tension and elasticity. This technique is crucial as replacement springs are often unavailable.

Quick Summary

Making custom leaf springs for shotguns involves shaping spring steel bar stock, followed by critical heat treatment processes. This includes hardening the steel by quenching it in oil after heating it to a red glow, and then tempering it to achieve the right elasticity. Tapering the spring legs allows for precise tension adjustment, ensuring proper firearm function when original parts are unavailable.

Chapters

  1. 00:00Introduction to Leaf Springs
  2. 00:30Project Overview with Jack Rowe
  3. 01:20Heating and Bending
  4. 03:25Rough Shaping
  5. 05:15Refining the Peg and Dimensions
  6. 07:23Tapering for Strength
  7. 10:05Hardening and Tempering
  8. 11:30Final Testing

Frequently Asked Questions

What materials are needed to make a custom leaf spring for a shotgun?

You will need spring steel bar stock, typically around 3/32 inch thick for components like top lever springs. Essential tools include a high-heat torch, pliers, a vise, a hacksaw, and various files for shaping and refining the spring.

What are the key steps in heat treating a custom leaf spring?

The process involves heating the shaped spring steel to a bright red, quenching it in oil to harden, and then tempering it by repeatedly heating it until the oil burns off to achieve the necessary elasticity and prevent brittleness.

Why is it important to taper the legs of a leaf spring?

Tapering the legs of the spring thins the metal, which weakens it and allows the gunsmith to precisely tune the spring's tension. This ensures the spring functions correctly within the shotgun's action without being too stiff or too weak.

Who demonstrates the process of making a leaf spring in the video?

The video features English-trained gunsmith Jack Rowe, who demonstrates the intricate process of making a Greener-type top lever spring for a British side-by-side shotgun, with commentary from Larry Potterfield.

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