Well it has. It shoots all types of ammo without a hitch. Likes some better that others. My daughter fired 140 rounds through it last Tuesday at a 1' by 1' metal plate at 50 yards. First two clips were all misses, but the last two clips were 6 and 7 of 10. All bulk Federal Champions. Not bad for her first time with a handgun (she's 14). We'll be out there again tomorrow, hopefully I'll get to squeeze off a few from the MK-III.