204Ruger

didnt notice till i was about to work cases up and seen sharp scratches in the cases,some were deep ,some not so bad.
I took the magazine apart n dam sharp edges so i break the jewlers files n go to work. Got edges smoothed up still lite scratches on first 2 cases but will get better.
When i open all mags i clean n get all oil out n use heavy coats of dupont tefl0n non stick.dirt dont adhire and wont rust but followers glide nice.

mine does this as well. i took some 4000 grit polishing paper/sand paper and smoothed the inside of the lips. i still scuff brass but not terrible. i'll see if i can clean it up any more