Revolver Timing Check

Published on November 3, 2025
Duration: 2:54

This guide details how to check the timing on revolvers, a critical aspect of their mechanical function for safety and accuracy. The video demonstrates the correct procedure for both single-action and double-action modes, highlighting common failure points. Instruction comes from an expert with high technical knowledge of historical firearm mechanics.

Quick Summary

Revolver timing ensures the cylinder locks precisely with the barrel for safe and accurate firing. Check single-action by slowly cocking the hammer; the cylinder should lock before full cock. For double-action, pull the trigger while supporting the hammer; the cylinder must lock the instant the hammer is released. A Webley Mark IV .38 is shown exhibiting timing faults.

Chapters

  1. 00:00Introduction to Revolver Timing
  2. 00:12Revolver Mechanics: Hand & Locking Bolt
  3. 00:31Single Action Timing Check Procedure
  4. 00:58Double Action Timing Check Procedure
  5. 01:50Demonstrating Bad Timing on Webley Mark IV

Frequently Asked Questions

What is revolver timing and why is it important?

Revolver timing refers to the cylinder locking precisely into place with the barrel each time the action is cycled. Correct timing is crucial for safety and accuracy, ensuring the bullet aligns perfectly with the bore upon firing. An out-of-time revolver can lead to misfires or poor performance.

How do you check single-action timing on a revolver?

To check single-action timing, slowly cock the hammer. The cylinder should lock securely into position just before the hammer reaches full cock. There should be no additional rotation or 'click' felt in the cylinder after it locks.

How do you check double-action timing on a revolver?

For double-action timing, support the hammer and pull the trigger smoothly. The cylinder must stop rotating and lock into place at the exact instant the hammer is released. It should not jump into place after the hammer has fallen.

What are the signs of a revolver being out of time?

A revolver is out of time if the cylinder doesn't lock properly. This might mean it needs a manual nudge to lock, or in double-action, it visibly jumps into place only after the hammer has already fallen. This indicates a mechanical issue affecting safety and accuracy.

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