Someone posted "unaccepted lot". Possible. But I believe they are more likely "pulldown". The military stores LOTS of ammo. Shelf life can be 20+ years. Then, they get pulled down out of active stock, disassembled and sold. This is where military surplus powder comes from, and brass and bullets. Powder has to be labeled as pull down. Tha bullets and brass were never fired. One other concern is steel jacketed ammo. I am not talking about Wolf steel cases. Copper looking bullets that stick to a magnet have steel jackets and are barred on Forest land as they spark hitting rocks. A lot of military projectiles have steel jackets, even U.S.