Glock 20 10mm Ammo Test With Clay. What Did We Find Out?

Published on February 14, 2021
Duration: 6:30

This video tests the performance of two different 10mm ammunition types fired from a Glock 20 against clay targets. The instructor compares a standard 180-grain FMJ round with a hotter 135-grain jacketed hollow point, analyzing the resulting damage and energy transfer. The test highlights how ammunition velocity and construction significantly impact terminal ballistics, even within the same caliber.

Quick Summary

Testing a Glock 20 with 10mm ammunition revealed significant differences in terminal ballistics. A Federal 180gr FMJ averaged 1164 fps and 543 ft-lbs, creating a channel. In contrast, Underwood's 135gr JHP achieved 1600 fps and 767 ft-lbs, resulting in much greater expansion and energy transfer upon impact.

Chapters

  1. 00:00Introduction and Setup
  2. 00:16Glock 20 and Ammunition Overview
  3. 00:52Federal 180gr FMJ Specs and Test
  4. 03:09Federal 180gr FMJ Clay Impact Analysis
  5. 04:14Underwood 135gr JHP Specs and Test
  6. 05:12Underwood 135gr JHP Clay Impact Analysis
  7. 05:38Comparing Ammunition Performance
  8. 06:13Conclusion and Outro

Frequently Asked Questions

What is the difference in performance between standard and hot 10mm ammunition?

Hotter 10mm loads, like the Underwood 135gr JHP tested at 1600 fps and 767 ft-lbs, deliver significantly more velocity and energy than standard loads such as the Federal 180gr FMJ (1164 fps, 543 ft-lbs). This difference results in more dramatic expansion and damage upon impact.

How does a Glock 20 perform with different 10mm ammo types?

The Glock 20 is a versatile platform for 10mm. When testing, a standard 180gr FMJ round created a channel, while a hotter 135gr JHP round from Underwood showed much more expansion and energy transfer, indicating the Glock 20 handles both, but the ammo dictates the terminal effect.

What are the ballistic specifications for the tested 10mm rounds?

The Federal 180-grain FMJ ammunition averaged 1164 feet per second with 543 foot-pounds of energy. The Underwood 135-grain Jacketed Hollow Point ammunition was significantly hotter, averaging 1600 feet per second with 767 foot-pounds of energy.

Does ammunition choice matter for 10mm effectiveness?

Yes, ammunition choice is critical for 10mm. The test showed that while a standard FMJ round made a channel, a high-velocity JHP round from Underwood opened up much more, demonstrating that hotter, well-constructed rounds maximize the caliber's potential for terminal ballistics.

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