300 AAC Blackout Ammo

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BULK 300 BLACKOUT AMMO SHIPS FOR FREE!

300 Blackout ammo, or 300 BLK, is a round popular for use in AR-15 rifles that was originally designed by Advanced Armament Corporation to mimic the ballistics of 7.62x39 rounds. A relatively new rifle cartridge in the shooting world, SAAMI officially recognized 300 Blackout in 2011.

300 Blackout Ammo for Sale:

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Items 1 to 30 of 37 total

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300 Blackout Ammo In-Stock for Range Training, Defense and Hunting

300 AAC BLK ammunition has exploded in popularity recently as shooters continue to flock to black rifles. Noted for their ballistic performance that mimics that of the 7.62x39 cartridge that's synonymous with the AK-47, 300 Blackout can deliver bullets downrange at about a 30% slower muzzle velocity than standard M855 ammunition.

Subsonic 300 Blackout Rounds

The team over at our School of Guns has put subsonic 300 Blackout ammo through several rounds of ballistic tests with synthetic ballistic gelatin. To see what kind of performance you can expect out of 300 BLK as a defense round, check out the tests here. We also have some analysis of 300 Blackout ballistics that you can browse here for real-world velocity and energy data.

How Does 300 Blackout Stack Up to Other Calibers?


  • 300 Blackout versus 5.56