My wife got a SR40 for Xmas this year; we had it out at the range for the second time today. Her SR misfired two different times, with two different types of ammo(Remington and Winchester). Both were new boxes from two different stores; my glock had no issues with either one. Any thoughts on what might be going on? I stripped it and cleaned it when I got home today, and plan on getting it back out in the the next couple of days. Any thoughts are appreciated. The primer on both were dimpled.