Black Hills MK 262 Mod1 77gr 5.56 OTM Ballistic Gel Test (HD)

Published on May 8, 2013
Duration: 4:30

This video provides an expert-level analysis of Black Hills Ammunition's MK 262 Mod 1 77gr OTM 5.56mm round. The test, conducted by Mrgunsngear, features a 16-inch Palmetto State Armory rifle with an FN barrel. Terminal ballistics were evaluated using Clear Ballistics gel, revealing significant fragmentation and a substantial wound cavity. The analysis highlights the round's effectiveness for military applications, emphasizing its Hague Convention compliance and performance characteristics.

Quick Summary

The Black Hills MK 262 Mod 1 77gr OTM 5.56mm round, tested in a 16-inch PSA rifle, averaged 2711 fps and 1256 ft-lbs of energy. In Clear Ballistics gel, it fragmented at 1.5 inches, creating a large wound cavity and penetrating up to 19 inches, demonstrating effective terminal ballistics suitable for military applications and Hague Convention compliance.

Chapters

  1. 00:15Ammunition Overview
  2. 01:31Test Rifle Specifications
  3. 01:46Chronograph Testing
  4. 02:15Ballistic Gel Analysis
  5. 03:14Fragmentation Mechanics and Conclusion

Frequently Asked Questions

What is the average velocity and energy of the Black Hills MK 262 Mod 1 77gr 5.56mm round?

From a 16-inch barrel, the Black Hills MK 262 Mod 1 77gr OTM 5.56mm round averaged 2711 feet per second (fps), generating approximately 1256 foot-pounds of muzzle energy. This data was recorded using a Chrony F-1 chronograph during the test.

How does the Black Hills MK 262 Mod 1 77gr OTM perform in ballistic gelatin?

The MK 262 Mod 1 77gr OTM exhibited significant fragmentation starting at 1.5 inches in Clear Ballistics gel. It created a large wound cavity between 5.5 and 12 inches, with fragments penetrating up to 19 inches, demonstrating effective terminal ballistics.

What rifle was used for the Black Hills MK 262 Mod 1 test?

The test utilized a 16-inch Palmetto State Armory mid-length rifle. This rifle was equipped with a cold hammer-forged FN barrel featuring a 1 in 7" twist rate, which is well-suited for stabilizing the 77gr projectile.

Is the Black Hills MK 262 Mod 1 77gr OTM compliant with the Hague Convention?

Yes, the MK 262 Mod 1 77gr OTM is compliant with the Hague Convention. Its open tip design is intended for aerodynamic stability, not expansion, which is a key requirement for military ammunition under the convention.

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