How to Adjust the Trigger Pulls | British Side-by-Side Shotguns | MidwayUSA

Published on March 7, 2014
Duration: 10:16

This guide details the advanced process of adjusting trigger pulls on an English Boxlock Shotgun, as demonstrated by English-trained gunsmith Jack Rowe. It covers understanding sear geometry, using specialized tools like an RCBS Trigger Pull Scale, and the precise filing techniques required to achieve target pull weights. The video emphasizes that this is serious work for qualified individuals only, highlighting the critical impact of trigger pull on shooting accuracy.

Quick Summary

Adjusting trigger pulls on an English Boxlock Shotgun involves precise modification of the sear geometry. Gunsmith Jack Rowe demonstrates using a trigger pull scale and fine files to achieve target weights of approximately 4 lbs (front) and 4.5 lbs (rear), emphasizing that this is advanced work for qualified individuals only.

Chapters

  1. 00:00Importance of Trigger Pulls
  2. 00:42Measuring Current Pull Weights
  3. 01:49Determining Ideal Pull Weights
  4. 02:30Disassembly and Sear Access
  5. 06:08Mechanics of Adjustment
  6. 06:40Filing and Reassembly
  7. 09:09Final Testing

Frequently Asked Questions

What are the ideal trigger pull weights for an English Boxlock Shotgun?

For an English Boxlock Shotgun, ideal trigger pull weights are generally around 4 pounds for the front trigger and 4.5 pounds for the rear trigger. The rear trigger typically requires a slightly heavier pull due to increased mechanical leverage from the finger's position.

How can trigger pull weight be adjusted on a shotgun?

Trigger pull weight is adjusted by modifying the sear nose geometry. Reducing the angle of the sear nose allows it to release the hammer more easily, decreasing pull weight. This requires precision filing and is best performed by a qualified gunsmith.

Why is trigger pull weight important for shotgun accuracy?

Trigger pull weight is critical because the brain calculates lead based on expected trigger timing. An inconsistent or incorrect pull weight can cause the shot to be fired too early or too late, leading to misses in front of or behind the target.

What tools are needed to adjust shotgun trigger pulls?

Essential tools for adjusting shotgun trigger pulls include a precise trigger pull scale (like an RCBS model), fine files for metalwork, and a sturdy bench vise for holding components securely during modification.

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