300BLK Vs. Ballistics Gel - SUPER HIGH SPEED CAMERA!

Published on July 15, 2020
Duration: 11:50

This guide details a comprehensive ballistics gel test of various .300 Blackout ammunition types, including subsonic and supersonic loads, conducted by firearms expert Jerry Miculek. The tests, performed using a suppressed Smith & Wesson M&P15 and high-speed camera, provide valuable insights into bullet expansion, penetration, and the overall versatility of the .300 Blackout cartridge for different applications.

Quick Summary

The .300 Blackout cartridge offers significant versatility, performing effectively as a quiet subsonic round for suppressed use or as a high-velocity supersonic round for hunting. Ballistics gel tests show subsonic rounds like the 188gr Discrete Ballistics achieving 18.5 inches penetration with good expansion, while supersonic 110gr GMX achieved 22 inches with excellent expansion.

Chapters

  1. 00:00Introduction to .300 Blackout Ballistics Test
  2. 00:18Origin of the .300 Blackout Cartridge
  3. 00:45Test Rifle: Suppressed Smith & Wesson M&P15
  4. 00:55Ammunition Overview: Subsonic & Supersonic Loads
  5. 02:09Test 1: Discrete Ballistics 188gr Subsonic Results
  6. 03:49Test 2: Hornady 190gr Sub-X Results
  7. 05:57Test 3: 220gr Subsonic Results (No Expansion)
  8. 07:15Test 4: Hornady 110gr GMX Supersonic Results
  9. 09:01Test 5: Hornady 110gr V-MAX Supersonic Results
  10. 11:15Conclusion: .300 Blackout Versatility

Frequently Asked Questions

What are the key differences between subsonic and supersonic .300 Blackout ammunition based on ballistics gel tests?

Subsonic .300 Blackout rounds, like the 188gr Discrete Ballistics and 190gr Hornady Sub-X, focus on deep penetration with controlled expansion (around 17-18.5 inches) and reduced noise. Supersonic rounds, such as the 110gr Hornady GMX, offer greater velocity and expansion (22 inches penetration), while varmint loads like the 110gr V-MAX prioritize rapid fragmentation for energy dump (14 inches penetration).

How does the .300 Blackout cartridge perform with different bullet types in ballistics gel?

In ballistics gel tests, the .300 Blackout shows varied performance: 188gr and 190gr subsonic rounds expand well, a 220gr subsonic round failed to expand, 110gr supersonic GMX expanded effectively, and 110gr supersonic V-MAX fragmented rapidly. This highlights the importance of ammunition selection for desired terminal ballistics.

What rifle was used for the .300 Blackout ballistics gel testing, and what features were notable?

The ballistics gel tests for .300 Blackout ammunition were conducted using a suppressed Smith & Wesson M&P15 rifle equipped with a 16-inch barrel and a Vortex optic. The suppressor is particularly relevant for showcasing the performance of subsonic ammunition.

What are the main advantages of the .300 Blackout cartridge as demonstrated by these ballistics tests?

The .300 Blackout cartridge demonstrates remarkable versatility. It can be effectively used with subsonic ammunition for suppressed applications requiring reduced noise and recoil, or with supersonic ammunition for hunting and other roles demanding higher velocities and greater energy transfer, as shown by the varied expansion and penetration results.

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