Lead Instead?...Underwood 9MM +P 115 Grain "Sporting" Self-Defense AMMO Ballistic Gel Test!

Published on March 13, 2026
Duration: 12:44

This in-depth ballistic gel test evaluates Underwood's 9mm +P 115 Grain Sporting JHP ammunition fired from a Canik Mete MC9 (3.1" barrel) and an FN 509 (4.5" barrel). The test meticulously records muzzle velocities, penetration depths, projectile expansion, and weight retention, providing valuable data for self-defense ammunition selection. The expert analysis highlights the ammunition's excellent performance, particularly its massive expansion and near 100% weight retention, while also discussing penetration nuances.

Quick Summary

The Underwood 9mm +P 115 Grain Sporting JHP demonstrated excellent performance in ballistic gel tests. Fired from a Canik MC9 (3.1" barrel), it averaged 1242 fps and penetrated 12.75 inches. From an FN 509 (4.5" barrel), it averaged 1342 fps and penetrated 10.75 inches, with both projectiles showing massive expansion and near 100% weight retention.

Chapters

  1. 00:00Intro & Test Setup
  2. 00:32Ammunition & Projectile Details
  3. 01:22Firearms Used
  4. 02:03Canik MC9 Velocity Test
  5. 03:30FN 509 Velocity Test
  6. 04:51Ballistic Gel Test
  7. 05:57Penetration Results
  8. 08:31Projectile Analysis
  9. 10:09Conclusion & Recommendations
  10. 11:57Channel Support & Gear

Frequently Asked Questions

What were the key performance metrics for Underwood 9mm +P 115gr JHP from a Canik MC9?

From the Canik MC9 (3.1" barrel), the Underwood 9mm +P 115gr JHP averaged 1242 fps, delivered 394 ft-lb of muzzle energy, and achieved 12.75 inches of penetration in ballistic gel with excellent expansion and weight retention.

How did the FN 509 perform with Underwood 9mm +P 115gr JHP compared to the Canik MC9?

The FN 509 (4.5" barrel) yielded higher velocities (1342 fps average) and muzzle energy (460 ft-lb) with the same Underwood ammunition. This resulted in slightly wider expansion but less penetration (10.75 inches) compared to the MC9.

What is the recommended penetration depth for self-defense ammunition?

The generally accepted FBI minimum penetration standard for self-defense ammunition in ballistic gelatin is 12 inches. This ensures adequate depth to reach vital organs while minimizing over-penetration risks.

Did the Underwood 9mm +P 115gr JHP projectiles retain their weight after firing?

Yes, both recovered projectiles showed near 100% weight retention. The projectile from the MC9 retained 115.4 grains (from a 115gr starting weight), and the one from the FN 509 retained 115.2 grains.

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