10mm Underwood 180gr XTP | Clear Ballistics Gel Test | Glock 29 and XDM 4.5

Published on July 8, 2023
Duration: 10:19

This video details a ballistics test of Underwood 10mm 180gr XTP JHP ammunition fired from a Glock 29 and an XDM 4.5. The test utilized Clear Ballistics Gel and measured penetration and observed bullet expansion. While advertised velocities were not met, the ammunition demonstrated excellent expansion and adequate penetration for self-defense, with the XDM 4.5 generally achieving slightly higher velocities and more consistent results than the Glock 29. The instructor, with significant experience, recommends this ammunition for carry purposes, noting its performance and potential for reloading.

Quick Summary

Underwood 10mm 180gr XTP JHP ammunition demonstrated excellent expansion and good penetration in ballistics gel tests fired from a Glock 29 and XDM 4.5. While actual velocities were lower than advertised, the bullets performed effectively for self-defense. The XDM 4.5 generally achieved higher velocities and more consistent results than the Glock 29.

Chapters

  1. 00:47Video Introduction & Ammo Type
  2. 01:28Firearms & Testing Setup
  3. 02:07Glock 29, Shot 1 Test
  4. 03:14Glock 29, Shot 2 Test
  5. 03:32Bullet Recovery & Expansion Update
  6. 05:04XDM, Shot 1 Test
  7. 06:08XDM, Shot 2 Test
  8. 07:09Recovered Bullet Comparison
  9. 07:51Final Thoughts & Conclusion

Frequently Asked Questions

How did Underwood 10mm 180gr XTP JHP ammunition perform in ballistics gel tests?

The Underwood 10mm 180gr XTP JHP ammunition demonstrated excellent expansion in Clear Ballistics Gel tests fired from both a Glock 29 and an XDM 4.5. Despite not reaching advertised velocities, the bullets consistently expanded and showed good penetration, making them a recommended choice for self-defense.

What were the measured velocities and penetration depths for 10mm Underwood 180gr XTP JHP from a Glock 29?

From a Glock 29, the Underwood 10mm 180gr XTP JHP achieved a measured velocity of 1153 fps on its second shot, with a penetration of 17 inches. The first shot penetrated 25 inches but had no chronograph reading.

What were the measured velocities and penetration depths for 10mm Underwood 180gr XTP JHP from an XDM 4.5?

The XDM 4.5 yielded velocities of 1263 fps and 1250 fps for the Underwood 10mm 180gr XTP JHP, with penetrations of 21 inches and 17 inches respectively. Both shots showed excellent expansion.

Is Underwood 10mm 180gr XTP JHP considered a good carry load?

Yes, based on ballistics gel testing showing good expansion and penetration, the Underwood 10mm 180gr XTP JHP is considered a viable carry load. The instructor noted its performance and potential for reloading.

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