Background Info: I've had my P3AT for almost a year now. I have only about 150 rounds through it. I have done the F&B. Problem: The past couple of times that I have cleaned my P3AT I have had trouble getting the first round to chamber. It's like the slide will not go far enough back to grab it or the magazine is sitting too low. But neither seems to be correct as I can pull the slide back as far as it will go and it still will not chamber the round. The magazine is seated as it ejects when I push the release. I have managed occasionally to get the first round chambered only to have it not eject properly (gets hung up leaving the slide open pushing against the round). Any ideas would be greatly appreciated. I have resorted to carrying my much larger pistol now until I can get this problem solved.