Missfire? No problem!

Published on April 4, 2025
Duration: 0:52

This video demonstrates that a firearm round detonating outside the barrel, often called a 'cook-off,' is not as dangerous as commonly perceived. An experiment showed that a 9mm FMJ round heated to detonation point did not penetrate a cardboard box, with shrapnel contained. The video then transitions to practical application, showing how to safely clear a simulated firearm malfunction and re-engage targets.

Quick Summary

A firearm round detonating outside the barrel, or 'cook-off,' typically occurs around 350-400°F. An experiment showed a 9mm FMJ round's shrapnel and projectile did not penetrate a cardboard box, indicating contained danger.

Chapters

  1. 00:00Experiment Intro: Ammo Cook-Off Danger
  2. 00:14The Cook-Off Process: Detonation Temps
  3. 00:21Post-Detonation Analysis: Shrapnel Containment
  4. 00:38Tactical Application: Misfire Clearing Drills

Frequently Asked Questions

Is it dangerous if a firearm round detonates outside the barrel?

An experiment showed a 9mm FMJ round detonating around 350-400°F did not penetrate a cardboard box. While the casing ruptured, shrapnel was contained, suggesting it's less dangerous than feared if handled correctly.

What temperature causes ammunition to 'cook off'?

Ammunition, specifically a 9mm FMJ round in this experiment, typically requires temperatures between 350 to 400 degrees Fahrenheit to 'cook off,' meaning to spontaneously detonate.

How should you handle a firearm misfire?

Treat every misfire seriously. Perform a standard malfunction clearance drill, such as Tap-Rack-Bang, to safely clear the round and re-establish the firing sequence.

What happens to the casing and projectile during a cook-off?

During a cook-off, the brass casing is completely obliterated. The projectile and any resulting shrapnel may be propelled, but in the tested scenario, they were contained by a simple cardboard box.

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