Took my PT145 to the range for the second time today. I put a little over a 100 rounds down range while trying to keep the magazines in the gun. The last time I went I had the same problem, just not as bad. It seems to get worse as the gun warms up. It was so bad at one point that every magazine I have, six in all, would drop out after every shot. We noticed that the magazine fit sloppy in the magwell, my son suggested shimming the magazine tighter in the well. I shimmed two mags with some plastic strips and they are good and tight now. I will try the gun again with the shimmed mags. I don't want to send it back to Taurus just yet. I really like the gun, if fits my hand well, shoots great and I hope I can work out the mags dropping out. Any suggestions would be appreciated.