300 blackout - Ammo, Inc. .300 AAC Blackout 150 Grain Full Metal Jacket (FMJ) Brass Cased Rifle Ammunition

The ammo showed up well packaged, and for 65 cents a round you can't beat it.
The brass casing and jacketed bullets have zero signs of damage or over crimping.
My local chain sporting goods location has these same rounds at 80 cents to a dollar a round, so you honestly can't go wrong with ordering them from Optics planet.