The SKS / AK does the same thing. With steel cases. It's not an issue. If you handload, size the case, reload it, and shoot it again. Those little dings get fire formed out, and you'll likely get another little ding somewhere else on the case. You may want to determine if the case isn't getting "dinged" when being chambered. Or if the bolt itself isn't doing it. Remember, those rounds are stacked tight in the magazine under spring pressure from the follower. The round going into battery may get a little dent at the chamber mouth of the barrel, or the next round in the top of the mag is getting rubbed by the bottom of the bolt as it slides across it. Either way it's not an issue. My 1911's will do the same thing to cases. It's a pretty violent action there, and you are dealing with malleable brass against hard steel. If you do a video, by all means, post it. It will be fun to watch!
Regards,
Bill