In my SD40 I've had no issues with Tula, nor in several other guns I own. In my M&P sometimes I get a light strike. I'm using the the Apex Competition AEK in that gun so that may have some effect on it, but its the only brand of ammo/primer that has given me trouble there.
As a reloader I try to avoid steel cases in general, but in a pinch I'll buy it but not to shoot in that M&P.
As a reloader I try to avoid steel cases in general, but in a pinch I'll buy it but not to shoot in that M&P.