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Published on March 10, 2023
Duration: 11:09

This video details a ballistics gel test of Cor-Bon 115-grain 9mm +P jacketed hollow-point ammunition. The test compares performance from a 3-inch barrel (Taurus GX4) and a 4.5-inch barrel (P80 clone), evaluating velocity, expansion, and penetration through a heavy clothing barrier. The instructor notes the ammunition's consistent performance and significant expansion, despite velocities not reaching advertised claims.

Quick Summary

Cor-Bon 115-grain 9mm +P JHP ammunition averaged 1223 fps from a 3-inch barrel and 1281 fps from a 4.5-inch barrel, falling short of the advertised 1350 fps. In ballistic gel with a clothing barrier, it showed excellent expansion and penetration of 13.5-14 inches, with high weight retention.

Chapters

  1. 00:00Introduction & Setup
  2. 00:10Ammunition Overview: Cor-Bon 115gr 9mm +P JHP
  3. 01:32Firearm Selection: Taurus GX4 & P80
  4. 02:01Velocity Testing: Taurus GX4 (3" Barrel)
  5. 02:57Velocity Testing: P80 (4.5" Barrel)
  6. 04:04Ballistics Gel Test: GX4 Round
  7. 04:40Ballistics Gel Test: P80 Round
  8. 05:06Gel Test Results: Expansion & Disruption
  9. 06:13Penetration Measurements
  10. 06:58Projectile Examination
  11. 07:36Weight Retention & Size Measurements
  12. 08:20Conclusion & Performance Summary
  13. 09:09Final Thoughts on 9mm +P Performance
  14. 10:11Call to Action & Support

Frequently Asked Questions

What were the average velocities for Cor-Bon 115-grain 9mm +P JHP ammunition in the test?

The Cor-Bon 115-grain 9mm +P JHP ammunition averaged 1223 feet per second from a 3-inch Taurus GX4 barrel and 1281 feet per second from a 4.5-inch P80 pistol barrel. This was below the advertised 1350 fps.

How did the Cor-Bon 115gr 9mm +P JHP perform in ballistic gel through a clothing barrier?

The ammunition demonstrated excellent expansion, achieving roughly 90-degree turns and significant mushrooming. Penetration depths were 13.5 inches (3" barrel) and 14 inches (4.5" barrel), considered sufficient with the observed expansion.

What was the weight retention and expansion size of the Cor-Bon 9mm +P projectiles?

Both tested projectiles retained most of their weight, losing only about 0.1-0.2 grains. Expansion sizes were impressive, with measurements around 0.57 inches from the 3-inch barrel and 0.58 inches from the 4.5-inch barrel.

Does barrel length significantly impact the performance of Cor-Bon 115gr 9mm +P JHP?

While the 4.5-inch barrel provided a modest velocity increase (58 fps) and slightly more penetration compared to the 3-inch barrel, both achieved excellent expansion and disruption, indicating good performance across different common carry barrel lengths.

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