You know I think this discussion was on the reloads, and CCI, and Winchester primers used in those loads. I have heard in other threads somewhere that sometimes that can be a problem, not necessarily the gun.
If it's reloads, be sure the primer is seated all the way to the bottom of the pocket. Yes, CCI is the hardest primers out there. I've switched to Winchester, myself. I had a Rossi 971 that didn't like CCI. All my guns now are fine with 'em, just stuck with Winchester.
when I had the light strikes i thought I noticed that maybe the primers were not seated all the way.
Have been reloading 9mm for my P95 for about a year using wolf primers and have never had any light strikes. Go figure. I have bought winchester and cci primers from my local range but I will probably pick up some wolf large pistol primers from powder valley as I am due for a new powder and primer order. I am going to pick up a box of factory ammo to see how they work.
Went back to the range today after checking my reloads, noticed 3 that the primers were not flush, so I reseated them. I had no missfires this trip in 200 rounds. Hopefully it was my fault not the guns.