I was at the range yesterday and I had a problem. I used S&B .40s&w fmj. A round would be chambered just fine and I would get a click but no bang. This happened 3 times. After inspection of the 3 shells I noticed the primers were marked (struck), but maybe not as deeply marked as other primers. Do you think this is a problem with the ammo or the firing pin mechanism? Like I said this happened 3 times out of 100 rnds fired. Has anyone else had this problem?... thanks in advance.... dinojas