I have an M&P 340 that is my always gun. I really like it. I had an action job done on it and it is just great. I agree with the above comment on the 442/642. I had a 337Ti that I had to send back to the factory for repair and they could not fix it. They offered to replace it so I ordered the 340 M&P. I carry SB 135gr Gold Dots in it and do not plan to carry .357's due to the heavy recoil etc. You should not have the bullet jumping issues with the M&P.

Tom