300 AAC Blackout – 150 gr FMJ – Federal American Eagle (AE300BLK1) – 500 Rounds

Federal American Eagle AE300BLK1 is one of the most widely available supersonic 300 Blackout practice loads, and it runs reliably in most 300 BLK rifles and pistols. This listing is Federal American Eagle 300 AAC Blackout 150 grain full metal jacket boat tail ammo, MPN AE300BLK1, sold as a 500 round case.

Federal rates this load at 1,900 fps with 1,202 ft-lbs of muzzle energy. The 150 grain bullet is a middle weight for the 300 Blackout. It is supersonic and produces enough gas to cycle short-barreled AR pistols and suppressed rifles, while the boat tail base helps it hold velocity downrange. A full metal jacket bullet does not expand reliably, so this is practice and training ammunition rather than a hunting or self defense load.

This ammunition fits firearms chambered in 300 AAC Blackout, also listed as 300 BLK or 7.62x35mm, including AR-15 rifles and pistols with 300 Blackout barrels, the Sig MCX Rattler and Spear LT in 300, the CZ Bren 2 in 300 BLK, Ruger American Ranch, and Q Honey Badger. A common question is whether 300 Blackout can be fired in a 5.56 AR-15. Never. A 300 Blackout cartridge can chamber in a 5.56 rifle and cause a dangerous failure, so mark your magazines clearly and only use this ammo in a firearm marked 300 Blackout. Another common question is whether this ammo is subsonic. It is not. At 1,900 fps it will produce a supersonic crack even through a suppressor.

Federal AE300BLK1 is new production ammunition, not reloads, made in the USA. Each round uses a reloadable brass case with a boxer primer and is non-corrosive. This case comes in factory packaging as 25 boxes of 20 rounds for a total of 500 rounds of 300 Blackout 150 grain FMJ-BT. Buying by the case keeps you on one production lot so your zero holds from box to box.