WHAT DOES BULK 300 BLACKOUT AMMO MEAN?

I need to perform some far more chrono function, but for supers, the above are fairly well-known. I am seriously bummed Wilson Battle stopped generating their version of Tac-tx for 300blk, that things was great.62x39mm cartridge was the normal cartridge for military services use, but it had been located to be significantly less successful in near q