Modern Masterpiece or Mediocre? .300 AAC Modern Arms 125gr Speer TNT
This video provides a detailed ballistic gel test of the .300 AAC Blackout cartridge, specifically using a 125-grain Speer TNT projectile fired from an 8-inch, 1:7 twist AR-15 upper. The analysis focuses on penetration depth, fragmentation/expansion, and retained weight, directly relating these metrics to defensive use scenarios. High-speed camera footage from Aimed Research is utilized to capture the impact dynamics. The test measures velocities, penetration exceeding 18.6 inches, and a retained weight of 77.8 grains. The video aims to evaluate whether this modern firearm and ammunition combination is a 'masterpiece' or 'mediocre' for its intended purpose.










