Underwood Xtreme Penetrator Standard vs +P Ballistic Gel Test With the .380 M&P Shield EZ!

Published on May 3, 2022
Duration: 10:08

This video details a ballistic gel test of Underwood Xtreme Penetrator ammunition in .380 ACP, comparing standard pressure and +P variants fired from an M&P Shield EZ. The test measured velocity and penetration, revealing impressive performance for both loads, with the standard pressure slightly outperforming the +P in depth. The solid copper projectiles maintained their integrity and created significant wound channels.

Quick Summary

The Underwood Xtreme Penetrator .380 ACP, both standard pressure and +P, demonstrated exceptional penetration in ballistic gel, exceeding 20 inches. The standard pressure load achieved 22 1/8 inches, while the +P reached 21 7/8 inches. These solid copper projectiles maintained their integrity and created significant wound channels, making them highly effective for self-defense.

Chapters

  1. 00:00Introduction & Setup
  2. 00:12Ammunition Overview: Underwood Xtreme Penetrator
  3. 00:32Standard Pressure vs +P Specs
  4. 01:07Firearm Used: M&P Shield EZ .380
  5. 01:29Chronograph Testing: Standard Pressure Velocity
  6. 02:19Chronograph Testing: +P Velocity
  7. 03:16Ballistic Gel Test Setup
  8. 03:21Standard Pressure Gel Test
  9. 04:03+P Gel Test
  10. 04:25Gel Test Results & Analysis
  11. 05:23Penetration Measurements
  12. 06:18Projectile Recovery & Weight Check
  13. 07:05Comparison to FMJ & Defenders
  14. 07:50Conclusion & Carry Recommendation
  15. 08:15Top .380 Ammunition Rankings
  16. 08:32Viewer Engagement & Call to Action

Frequently Asked Questions

How did the Underwood Xtreme Penetrator .380 ACP perform in ballistic gel?

The Underwood Xtreme Penetrator .380 ACP, both standard pressure and +P, demonstrated exceptional penetration, exceeding 20 inches in ballistic gel and creating significant wound channels. The standard pressure load achieved 22 1/8 inches, while the +P reached 21 7/8 inches, with projectiles maintaining full weight and integrity.

What were the average velocities for the Underwood Xtreme Penetrator .380 ACP loads?

When fired from an M&P Shield EZ with a 3.5-inch barrel, the standard pressure 90-grain Underwood Xtreme Penetrator averaged 1084 fps. The +P version averaged 1131 fps, showing a difference of 47 fps, less than the advertised 100 fps.

Did the Underwood Xtreme Penetrator .380 ACP projectiles expand in ballistic gel?

No, the Underwood Xtreme Penetrator .380 ACP projectiles are solid copper and designed for deep penetration, not expansion. They maintained their original shape and weight after passing through the ballistic gel, showing no deformation.

Which Underwood Xtreme Penetrator .380 ACP load performed better in the gel test?

In this specific ballistic gel test, the standard pressure Underwood Xtreme Penetrator .380 ACP slightly outperformed the +P version, achieving 22 1/8 inches of penetration compared to the +P's 21 7/8 inches. Both rounds showed excellent performance.

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