Thank you. I do realize now there is a large tolerance. I just am grumpy that I am stuck wtih 1,000 rounds of lousy ammo. I should be able to sell it or trade it though. I do use CCI, STANDARD velicity and that is perfect other than every 20 rounds or so a spent casing jams the slide open (it just doesn't kick it out quick enough) but other than that I'm happy with it. I would NEVER stake my life on the performance of this gun though. Strictly for fun. I have hear nothing but good about them which is why I bought it, but frankly it's been a very mediocre pistol so far.