I took my new Kel-Tec CP33 to the range today. I only tried two types of ammo in it, CCI AR Tactical and CCI Standard Velocity. The pistol functioned flawlessly for me. I only shot 5 magazines worth of ammo today. I had absolutely no failures at all. I decided to sight the Swampfox Kingslayer in at 25 yards. It is a fun gun to shoot and what's not to like about having 33 rounds per magazine. 25 yard target shooting fairly rapid. Don't mind the holes towards the bottom of the target since they are from sighting in the red dot.