Originally Posted by dunerjeff
If you ever have a pierced primer,no matter what brand in any standard caliber it is 1) beyond specs in that caliber, 2)malfuntioning firing pin,.
You have nothing to worry about using those Federal primers.
Unless 357sig is considered non-standard or abnormal, this simply isnt true.
I used Federal primers in a brand new Glock (under 500 rounds) that did and still functions perfectly, that had never before or ever since pierced any primer except Federal. It pierces, craters and mushrooms both standard and magnum Federal SP primers, at any and all load levels, but has no problems with any other brand I've used, in factory ammo or my reloads at any power level.