300 AAC Blackout – 150 gr FMJ – Ammo Inc (300B150FMJ-A20) – 500 Rounds

300 Blackout owners who shoot often need an affordable practice load, and a 500 round supply covers a lot of range days. This listing is Ammo Inc 300 AAC Blackout 150 grain full metal jacket ammo, MPN 300B150FMJ-A20, sold as 500 rounds for AR-15 rifles and pistols in 300 BLK, short barreled builds, and bolt action shooters.

The 150 grain bullet is a middle weight for the 300 Blackout, heavier than the 110 to 125 grain varmint and defensive bullets and lighter than the 200 plus grain subsonic loads. It gives a good balance of recoil, trajectory, and reliable cycling for practice and plinking. Because it is a full metal jacket bullet, it does not expand, so it is meant for target shooting and training rather than hunting deer or hogs, where an expanding bullet is needed.

This ammunition fits firearms chambered in 300 AAC Blackout (300 BLK, 7.62x35mm), including AR-15 rifles and pistols with 300 BLK barrels, the SIG MCX Rattler and MCX Spear LT in 300 BLK, the Ruger American Ranch, CZ 527, and Daniel Defense and B&T 300 BLK models. A common question is whether 300 Blackout can go in a 223 or 5.56 rifle. Never. A 300 BLK round can chamber in a 5.56 barrel and fire, which can destroy the rifle and injure the shooter, so mark your 300 BLK magazines and keep the ammo separated. Another common question is whether 300 BLK uses standard AR-15 magazines. It does, and the same bolt and lower work with only a barrel change.

Ammo Inc 300B150FMJ-A20 is new production ammunition, not reloads, loaded in brass cases with non-corrosive primers. This listing contains 500 rounds of 300 Blackout 150 grain FMJ from one lot, which keeps cycling and point of impact consistent during a full season of practice and lets you dial in a single zero.