What Happens If A Rifle Fires With The Bolt OPEN ???

Published on December 3, 2025
Duration: 17:29

This experiment, conducted by Scott DeShields, demonstrates the severe consequences of firing a bolt-action rifle with its bolt open or locking lugs compromised. By testing .223 Remington, .308 Winchester, and .50 BMG calibers with modified bolts, the video visually confirms that the bolt can become a dangerous projectile. The .308 test showed the bolt striking a ballistic dummy's face, while the .50 BMG resulted in a jammed action, highlighting extreme risks.

Quick Summary

Firing a bolt-action rifle with the bolt open or locking lugs compromised is extremely dangerous. The immense pressure can eject the bolt rearward, turning it into a projectile. In tests, a .308 bolt struck a dummy's face, and a .50 BMG action suffered catastrophic failure.

Chapters

  1. 00:00Introduction: Bolt-Open Firing Danger
  2. 01:18Mechanics of Bolt Failure
  3. 02:31Safety Setup for Experiment
  4. 04:18.223 Remington Test Results
  5. 06:47.308 Winchester Test Results
  6. 11:24.50 BMG Test Results

Frequently Asked Questions

What is the primary danger of firing a bolt-action rifle with the bolt open?

The primary danger is that the bolt, not being secured by locking lugs, can be forcefully ejected rearward towards the shooter. This can turn the bolt into a projectile, causing severe injury or death.

How was the bolt-action rifle modified for the experiment?

For the experiment, the rifle's bolt was modified by grinding off the locking lugs completely. This removed the mechanism that secures the bolt within the receiver during firing.

What happened when a .308 Winchester rifle fired with its bolt lugs removed?

When fired, the .308 Winchester rifle experienced approximately 11,000 lbs of bolt thrust. This force ejected the bolt completely out of the receiver, and it struck the ballistic dummy directly in the face.

Can a rifle still function if the bolt is not fully locked?

No, a rifle cannot safely or reliably function if the bolt is not fully locked. The locking lugs are essential for containing the immense pressure generated during firing. Failure to lock can lead to catastrophic firearm failure.

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