300 Blk Conversion

Making 300 Blackout Cases From .223 Brass

My wife’s son is building a 300 Blackout AR pistol, the trouble is factory ammo is made of that precious commodity known as unobtanium. I looked at my stash of prepped .223 brass and decided to do something about it. Converting .223 to 300Blk is not difficult, however the forums are full of new reloaders, […]