What Happens when you Shoot Damaged Ammo?

Published on February 27, 2016
Duration: 13:38

This experiment tested the effects of shooting damaged 5.56mm ammunition in an AR-15. Rounds with pushed-in projectiles showed increased velocity and a downward shift in point of impact, while bent cases required the forward assist but still fired. Despite successful firing, the host strongly advises against using damaged ammunition due to unpredictable pressure spikes and significant safety risks.

Quick Summary

Shooting damaged ammunition, especially with pushed-in projectiles, can increase chamber pressure and velocity, potentially causing a shift in point of impact. While bent cases might chamber and fire, this is highly risky due to compromised case integrity and unpredictable pressure spikes. Damaged cases often fire-form in the chamber, but the risks outweigh any perceived benefits.

Chapters

  1. 00:00Intro: Testing Damaged Ammo
  2. 00:22Equipment & Setup: AR-15 & Chronograph
  3. 01:17Safety First: PPE & Precautions
  4. 03:17Test 1: Bent Front Ammo Results
  5. 05:42Test 2: Bent Back Ammo Results
  6. 07:54Test 3: Pushed-In Projectiles
  7. 09:38Impact Analysis & Brass Inspection
  8. 11:17Conclusion: Don't Shoot Damaged Ammo

Frequently Asked Questions

What happens if you shoot ammo with pushed-in projectiles?

Shooting ammo with pushed-in projectiles can increase chamber pressure due to reduced internal volume. This may lead to higher velocities and a potential shift in point of impact, as observed in testing where a 3-inch downward shift occurred.

Can bent ammunition be fired safely?

While some bent ammunition, like cases bent at the rear, might chamber and fire after using the forward assist, it's highly risky. The integrity of the case is compromised, and unpredictable pressure spikes can occur, making it unsafe.

Does damaged ammo straighten out when fired?

Yes, fired brass cases that were bent or deformed often fire-form and straighten out within the firearm's chamber. However, this doesn't negate the risks associated with firing compromised ammunition.

What are the main safety risks of shooting damaged ammunition?

The primary risks include unpredictable pressure spikes that can damage the firearm or cause injury, potential for squib loads or barrel obstructions, and overall unreliability. It's strongly advised against.

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