Well, I have heard of some early adopters having light primer strikes and that S&W re-speced the striker spring.
But before you persue that, make sure you are seating the suckers fully. There also was a bad batch of winchester small pistol at some point apparantly. They were a tad out of spec and could cause seating issues or a small sliver of the primer cup to be shaved off. The sliver could then cause problems with the primer system on various presses.
Being a fairly shelf stable product, who knows how old the lot was. I just know the local reloading supply guy got a mess of them, and a lot of the locals had issues for a couple months.
But before you persue that, make sure you are seating the suckers fully. There also was a bad batch of winchester small pistol at some point apparantly. They were a tad out of spec and could cause seating issues or a small sliver of the primer cup to be shaved off. The sliver could then cause problems with the primer system on various presses.
Being a fairly shelf stable product, who knows how old the lot was. I just know the local reloading supply guy got a mess of them, and a lot of the locals had issues for a couple months.