Chain Fire: Why Does It Happen?

Published on February 20, 2023
Duration: 10:30

This video explains the phenomenon of chain fires in cap and ball revolvers, detailing their causes, dangers, and prevention methods. Instructor Dustin from Guns of the West uses a Third Model Dragoon for demonstration and provides video examples of chain fires. Key takeaways include the importance of correctly sized bullets and percussion caps, the role of lubricants and wads, and the potential for damage to the firearm and injury from unintended detonations.

Quick Summary

A chain fire in a cap and ball revolver occurs when the discharge of one chamber ignites adjacent chambers. This is often caused by fire escaping past a poorly seated bullet or under a loose percussion cap. Prevention involves using correctly sized bullets and snugly fitted caps, with lubricants offering an additional safety measure.

Chapters

  1. 00:05What is a Chain Fire?
  2. 00:34Origin of the Topic
  3. 01:06Cap and Ball vs. Modern Revolvers
  4. 01:40Cylinder Anatomy
  5. 02:15Load Protection Differences
  6. 02:52Video Example: LeMat Chain Fire
  7. 03:39Visual of Fire from a Shot
  8. 04:01Video Example: Duke Frazier's Chain Fire
  9. 04:34Dangers of Chain Fires
  10. 04:47Potential Damage to Firearm
  11. 05:39Brass Frame Considerations
  12. 05:58How to Avoid Chain Fires
  13. 06:04Importance of Correct Components
  14. 06:36Bullet Sizing (.44 Caliber)
  15. 07:01Percussion Cap Recommendations
  16. 07:51Role of Wads and Lube
  17. 09:01Loading Procedure Recap
  18. 09:33Safety During Chain Fires
  19. 09:57Summary: What, Why, How

Frequently Asked Questions

What is a chain fire in a cap and ball revolver?

A chain fire is when the ignition from one chamber of a cap and ball revolver causes adjacent chambers to also discharge. This can happen due to fire escaping from the front past a poorly seated bullet or from the rear under a loose percussion cap.

What causes chain fires in black powder revolvers?

Chain fires are typically caused by improper sealing of the bullet in the chamber, allowing flame to escape forward, or by percussion caps that are not fitted tightly to the nipples, allowing flame to escape rearward and ignite adjacent charges.

How can I prevent chain fires when loading a cap and ball revolver?

To prevent chain fires, ensure you use correctly sized bullets that create a good seal, and fit percussion caps snugly onto the nipples. Using lubricated wads or bullet lube can also provide an extra layer of protection.

Are chain fires dangerous for the firearm?

Yes, chain fires can be dangerous for the firearm. Unintended projectiles can strike critical components like the wedge, screws, or rammer, causing damage and potentially compromising the gun's safe operation. Brass frames are particularly susceptible to stress.

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