Gimme FIVE!...10MM Underwood 155 VS 150 Grain Self-Defense AMMO Ballistic Gel Test & Review!

Published on February 15, 2025
Duration: 15:53

This video presents a ballistic gel test comparing two 10mm Underwood ammunition loads: a 155-grain XTP and a 150-grain Nosler Sporting projectile. The test, conducted using a Glock 20 Gen 4, measured velocity, penetration, expansion, and fragmentation. While both rounds performed well, the 155-grain load demonstrated superior expansion and slightly less fragmentation, leading the reviewer to favor it for self-defense applications.

Quick Summary

The 155-grain Underwood 10mm XTP load demonstrated superior expansion and less fragmentation in ballistic gel, achieving approximately 14 inches of penetration. While the 150-grain Nosler Sporting projectile fragmented more, the 155-grain was preferred for self-defense due to its more controlled and effective performance.

Chapters

  1. 00:00Introduction & Setup
  2. 00:44Ammunition Overview: 155gr vs 150gr Underwood 10mm
  3. 01:31Projectile Differences: XTP vs Nosler Sporting
  4. 02:36Test Firearm: Glock 20 Gen 4
  5. 03:10Velocity Test: 155gr Underwood 10mm
  6. 05:02Velocity Test: 150gr Underwood 10mm
  7. 07:15Ballistic Gel Test: 155gr vs 150gr Underwood 10mm
  8. 08:36Gel Test Results: Penetration & Fragmentation
  9. 10:43Close-up: Gel Performance Comparison
  10. 11:39Projectile Examination: Expansion & Weight Retention
  11. 13:02Conclusion: 155gr vs 150gr Underwood 10mm Verdict
  12. 15:13Final Thoughts & Viewer Engagement

Frequently Asked Questions

What are the key differences between Underwood's 155-grain and 150-grain 10mm self-defense loads?

The 155-grain Underwood 10mm load, featuring an XTP projectile, demonstrated superior expansion and less fragmentation in ballistic gel tests. The 150-grain load, with a Nosler Sporting projectile, fragmented more but achieved slightly deeper penetration, though the 155-grain was still preferred for self-defense.

How did the Underwood 10mm 155-grain XTP perform in ballistic gel testing?

The 155-grain Underwood 10mm XTP achieved approximately 14 inches of penetration in ballistic gel, showing significant expansion and minimal fragmentation. This performance led the reviewer to consider it an excellent 10mm self-defense round.

What were the average velocities recorded for the Underwood 10mm 155-grain and 150-grain loads?

In this test conducted with a Glock 20 Gen 4, the Underwood 10mm 155-grain load averaged 1407 ft/s, while the 150-grain load averaged 1441 ft/s. These velocities were slightly lower than manufacturer claims for the 155-grain.

Which Underwood 10mm load is recommended for self-defense based on this ballistic gel test?

Based on the ballistic gel performance, particularly superior expansion and controlled fragmentation, the 155-grain Underwood 10mm XTP load is recommended over the 150-grain Nosler Sporting projectile for self-defense applications.

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