Hollow Point Vs FMJ *Energy Test*

Published on January 23, 2025
Duration: 1:16

This video provides an expert-level comparison between Hollow Point (HP) and Full Metal Jacket (FMJ) ammunition through practical testing. Using a Shadow Systems MR920 and ballistics gel, the host demonstrates the significant difference in terminal ballistics, emphasizing the superior energy transfer and expansion of HP rounds for defensive applications. The authoritative presentation highlights key concepts in terminal ballistics.

Quick Summary

The video demonstrates that Hollow Point (HP) ammunition expands upon impact in ballistics gel, causing significant displacement and transferring more energy, while FMJ rounds penetrate with less expansion. This makes HP rounds generally more effective for self-defense due to increased stopping power and reduced over-penetration risk.

Chapters

  1. 00:00Introduction: HP vs FMJ Comparison
  2. 00:06Water Barrel Test
  3. 00:18Equipment Overview: Shadow Systems MR920 & Gideon Rock
  4. 00:30Hydrostatic Shock Explanation
  5. 00:51Ballistics Gel Test: Live Fire
  6. 01:08Conclusion: Expanded Hollow Point Analysis

Frequently Asked Questions

What is the primary difference between Hollow Point and FMJ ammunition in terms of terminal ballistics?

Hollow Point (HP) ammunition is designed to expand upon impact, creating a larger wound channel and transferring more energy. FMJ (Full Metal Jacket) rounds tend to penetrate with less expansion and energy transfer, making them less ideal for defensive use.

How does the video demonstrate the energy transfer difference between HP and FMJ rounds?

The video uses a ballistics gel test. A hollow point round causes significant displacement and expansion in the gel, while an FMJ round passes through with minimal disruption, visually demonstrating the difference in energy transfer.

What firearm and optic were used in the Hollow Point vs. FMJ test?

The test was conducted using a Shadow Systems MR920 semi-automatic pistol equipped with a Gideon Rock red dot sight.

Why is Hollow Point ammunition generally recommended for self-defense over FMJ?

Hollow points are recommended for self-defense because their expansion upon impact maximizes energy transfer to the target, increasing effectiveness and reducing the risk of over-penetration compared to FMJ rounds.

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