All righty then. It's time to play that famous game, "DIAGNOSE THE BRASS."
When I went shooting with my Dad in Wisconsin I discovered that about seven (at least that I found) brass casings were a little mangled when we went looking for brass. I know some brass being bent or beat up can be normal but these all looked the same.
I went shooting yesterday and while picking up the brass I discovered more brass with the same marking on them. I decided to take it home, take pictures and see if anyone could tell me if I should be worried or not.
The gun is not jamming, it's not doing anything negative in and of itself, but I have no idea why the brass would look like this.
This is my Kimber Ultra CDP .45. All of the brass is from Winchester 230 grain FMJ rounds.