Jim Watson said>I have a few rounds of loaded ammo and some empties. The case is plastic with a metal head and rim. Those funky looking bullets were to be loaded with the reduced diameter shank in the plastic case, with a ridge in the plastic snapping into the groove in the bullet to serve in place of a crimp. An interesting gimmick that went nowhere. Shares of stock in USAC were selling for 25 cents before the company folded completely.