Federal HST 124gr +P 9MM Various Barrel Lengths Gel Test 9x19

Published on February 15, 2026
Duration: 10:44

Buckeye Ballistics provides an in-depth analysis of Federal HST 124gr +P 9mm ammunition performance across various barrel lengths (3.3" to 10.5"). The expert demonstrates high authority through detailed calibration of ballistic gelatin and analysis of velocity's impact on bullet expansion and penetration. The test highlights how longer barrels increase velocity, leading to more dramatic expansion, but also increased drag, which can affect penetration depth.

Quick Summary

Buckeye Ballistics conducted a detailed ballistic gel test of Federal HST 124gr +P 9mm ammunition across various barrel lengths (3.3" to 10.5"). The expert analysis revealed that longer barrels increase velocity, leading to more dramatic bullet expansion. However, increased expansion can also create more drag, potentially affecting penetration depth. The test highlighted the importance of barrel length in terminal ballistics performance.

Chapters

  1. 00:00Introduction & Velocity Data
  2. 01:17Gel Calibration & Transparency
  3. 02:51Firearms Overview
  4. 03:31Handgun Gel Testing
  5. 06:38PCC Gel Testing
  6. 09:30Final Comparison

Frequently Asked Questions

How does barrel length affect Federal HST 124gr +P 9mm performance?

Longer barrels increase velocity, leading to more dramatic bullet expansion and 'flowering' of the Federal HST 124gr +P 9mm. However, increased expansion from higher velocities can also create more drag, potentially impacting penetration depth, as observed in tests ranging from 3.3" to 10.5" barrels.

What is the significance of the ballistic gelatin calibration in this test?

The ballistic gelatin used calibrated slightly thicker than standard (2.5 inches instead of the typical 2.95-3.75 range). This suggests it may perform closer to 15% density, potentially influencing penetration and expansion results compared to tests using standard 10% density gel.

Which firearms were used in the Federal HST 9mm gel test?

The test utilized a Taurus GX2 with a 3.3" barrel, a Glock 17 with a 4.5" barrel, a Bear Creek Arsenal BC9 with a 7.5" barrel, and a Palmetto State Armory AK-V with a 10.5" barrel to evaluate the ammunition across different platforms.

What are the key takeaways regarding Federal HST 124gr +P 9mm expansion?

Federal HST 124gr +P 9mm bullets showed consistent expansion across all tested barrel lengths. Higher velocity rounds from longer barrels exhibited the most significant expansion, characterized by pronounced 'flowering' and larger recovered diameters, demonstrating the ammunition's effectiveness.

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