My wife's stovepiped a live round, on the last round of each mag from the first mag through the gun. It made three trips back to the factory. Each time the same issues returned no matter what ammo we used or who shot the gun. Eventually, S&W nutted up and took it back to be destroyed. I got a new M&P 9 2.0 from S&W and my wife got my 2" S&W model 12 round butt.