Thanks for the updates. Since Ruger says specifically that dry fire is fine with my SR9Cs as long as the mag is seated, would think that since both are striker fired, it wouldn't hurt the M&P.

Guess some misinterpreted my comment about being "gentle". An example of what I consider bad practice is to drop the slide off of the slide stop. Just release some of the pressure by pulling back in the slide and then depressing the slide stop.

I use them for what they're intended, if they're +P rated, I make sure it functions with a variety of that sort of ammo but practice is with generic but quality FMJ ammo. Don