How Deadly Is A JB WELD Bullet?

Published on January 10, 2026
Duration: 1:04

This experiment tests the lethality of custom-made JB Weld epoxy bullets loaded into 12-gauge shotgun shells. While highly inaccurate, the JB Weld bullets demonstrated significant penetration and were proven lethal in ballistics gelatin tests, passing through a gelatin head. The experiment highlights the potential for DIY ammunition but underscores its practical limitations in accuracy.

Quick Summary

JB Weld bullets, made from epoxy stick and loaded into 12-gauge shells, are highly inaccurate but lethal. Tests showed they penetrate ballistics gelatin effectively, passing through a head, though they transfer less energy than standard slugs.

Chapters

  1. 00:00Introduction to JB Weld Bullets
  2. 00:15Energy Impact Comparison
  3. 00:29Accuracy and Lethality Testing

Frequently Asked Questions

What are JB Weld bullets?

JB Weld bullets are custom projectiles made from JB Weld epoxy stick, mixed and formed into spherical shapes. They are then loaded into ammunition casings, in this case, 12-gauge shotgun shells, for experimental firearm testing.

How accurate are JB Weld bullets?

During testing, JB Weld bullets loaded into 12-gauge shells proved to be highly inaccurate. They did not consistently hit the intended target on a paper range, indicating significant challenges with their aerodynamic stability and consistency.

Are JB Weld bullets lethal?

Yes, despite their inaccuracy, JB Weld bullets were found to be lethal. When fired into ballistics gelatin, they penetrated the face and exited the back of a gelatin head, demonstrating significant stopping power and lethality.

How do JB Weld bullets compare to standard slugs?

In a water jug test, a standard 12-gauge slug caused a more explosive impact with greater energy transfer. The JB Weld bullet, however, punched straight through the jugs, showing high penetration but less immediate energy dissipation.

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