A few of the “spent” 300 AAC Blackout projectiles tested in ballistic gelatin. Given the level of interest in the 300 AAC Blackout caliber, and my obsession with unusual chamberings, I thought it would be interesting to take a closer look at exactly what the 300 Blackout does. As one of the intents behind the development of this cartridge was to provide better terminal effectiveness when fired from short barrel rifles, I decided to do some basic tests along those lines.

Use of a short barrel configuration as opposed to a full 16-inch rifle barrel will cause a drop in muzzle velocity …read more

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