AAC 5.56 With 77gr Sierra MatchKing HPBT: Better Than The Military's MK262?

Published on December 20, 2022
Duration: 11:21

The AAC 5.56 NATO load with a 77gr Sierra MatchKing bullet shows promising performance, comparable to military MK262. Tested across 10.4-inch and 16-inch barrels, it achieved velocities of 2,274 FPS and 2,564 FPS respectively. Ballistic gel tests revealed significant fragmentation and wound channels, meeting self-defense criteria and FBI penetration standards.

Quick Summary

The AAC 5.56 NATO 77gr Sierra MatchKing load performs comparably to military MK262. Tested velocities were 2,274 FPS (10.4" barrel) and 2,564 FPS (16" barrel). Ballistic gel tests showed significant fragmentation and penetration meeting FBI standards, making it suitable for self-defense.

Chapters

  1. 00:00Intro: AAC 77gr 5.56 NATO vs MK262
  2. 01:46Chronograph Test: 10.4" Barrel
  3. 02:07Chronograph Test: 16" Barrel
  4. 02:25Ballistic Gel Test: 10.4" Barrel
  5. 04:28Ballistic Gel Test: 16" Barrel
  6. 07:21Final Assessment & Accuracy

Frequently Asked Questions

What are the key performance metrics for the AAC 5.56 77gr Sierra MatchKing load?

Tested with a 10.4-inch barrel, it averaged 2,274 FPS and 884 ft/lbs. A 16-inch barrel yielded 2,564 FPS and 1,124 ft/lbs. Ballistic gel tests showed significant fragmentation and penetration meeting FBI standards.

How does the AAC 77gr Sierra MatchKing compare to the military's MK262 load?

The AAC load is noted for its similarity in performance to MK262, often considered a highly effective 'man-stopper'. It offers comparable terminal ballistics and is currently one of the more affordable 77gr options.

What were the results of the ballistic gel testing for the AAC 77gr 5.56 NATO?

From a 10.4-inch barrel, fragmentation began around 4 inches. With a 16-inch barrel, fragmentation started earlier at 3.5 inches, producing a nastier wound track and exiting between 16-21 inches.

Is the AAC 77gr Sierra MatchKing suitable for self-defense?

Yes, the load performs well in ballistic gel tests, showing good fragmentation and penetration that meets FBI standards for self-defense. Its accuracy and wind resistance also contribute to its effectiveness.

More Reviews Videos You Might Like

More from Mrgunsngear Channel

View all →