Went to the range today to put first 100 rounds through my new Sig P238. I was at round 92 and thinking to myself "wow this is the first time a semi auto worked flawlessly at the first range visit" when the last round in the mag failed to eject clear of the breech. It rolled right out and I noticed the case was badly damaged. I was able to replicate the malfunction once more but then it worked fine for another 15 rounds. I attached a pic of the damaged rounds and two examples of the other 99 good ones. Will clean and lube then try again. For the most part happy. It did go bang every time and the two problem child's were just resting in the breach literally lolling around on the mag follower. Dropping the mag would have solved the problem.