Hey, I've only been shooting a couple months. I'm shooting 45 single stack....well, I'm cheating a little.... I bought some ten round mags so I can miss some steel without having to reload all the time. Anyway, I've been through a myriad of problems with the gun. First the mags wouldn't seat when they were fully loaded. Then they wouldn't drop properly. Then the gun was locking open. Maybe my grip was bad....maybe I was hitting the slide lock with my thumb....not sure. Anyway, the guys at Pine Tree have been very helpful. A couple of guys in particular have really taken me under their wing. One guy did a trigger job for me....another guy gave me a Dillon 1050 to borrow because he couldn't stand me shooting box ammo! So, now the gun is stopping sometimes.....maybe cause I'm trying to shoot too fast and not allowing the trigger to reset. Man it's been fun but frustrating. Finally, I gotta say I have never encountered a nicer bunch of guys. I can't wait to get to the point where the gun runs reliably.