Between my son and I, there are a few of the 375 Rugers in the safes. Three of them are very early production, pre-barrel band sling attachment rifles. One is an African that feeds everything slick; whether operated fast, medium, or slow. Two are re-barreled stainless, pre-barrel band also, which feed very slick also.
Two are later production, barrel band type. These two took a lot of rounds cycled through prior to feeding properly. They suffered from popping rounds out, failure to pick up rounds, and severely scratching brass. It appeared as though the feed ramp edge was a major culprit, though the feed rails also appeared to be a lesser issue. LOTS of brass shavings would build up forward of the feed ramp. One of these smoothed out after, estimating, a few hundred cycles of ammo through it. The last one was closer to several hundred cyclings, I almost gave up on it. As mentioned some cases would be dented, severely scratched (much worse that yours), and brass shavings looked like a lathe had been turning brass. I was almost ready to throw in the towel on it, eventually though it smooth out and feeds fine with the DGS, DGX, and 270 gr TSX (which fed somewhat better in the beginning). Due to all this, I do have a couple of boxes of ammo, that I will not be re-using the brass.
