I'm new to this forum and I too am having problems with my Taurus PT140 PRO. Brand new, bought it last
Feb of 09. Fired it for the first time at my CHL renewal class and after a couple of shots the clip dropped out and the round jammed. The instructor took the weapon and tried it himself. Same problem. He told me that he had heard of others with Taurus guns had the same problem. So the instructor loaned me his glock to finish with the weapon qualification. Before I send it back to Taurus I am going to the range this weekend and try one more time.
Maybe it's my thumb, by accident, hitting the mag ejection button at time of recoil.