I didn't see how deep the indentions were I put the bad ammo in the dispose bucket at the range, now this gun has had thousands of rounds through it, on a average of a 100 rounds a month. never a misfire. a couple of stovepipes from letting other people shoot it with a bad grip. I have shot some of this ammo a while back and it shot fine. the ammo has not been exposed to anything abnormal. I have 22 rounds 15 years old from my dad that i shot with no bad ammo. 8 years isn't a long time. I carry my revolver now. it is a pt945 taurus. big and bulky but pretty good.