Hi to all, while I totally agree that the ding on the brass can be easily corrected by sizing, it doesn't address a more sinister problem lurking in such Lugers? If only once or twice in a thousand, it causes a smokestack or stovepipe jam, it is too many potential malfunctions for me!!!!
The drums I test at the range, require a super correct and healthy shooter Luger so I'm not testing two things at once... been there, done that! You can tell how healthy the set up is on your luger by how high the brass goes vertical on ejection... I vote for cleaning up the ejector, and new extractor springs often...

.... just me, ….best to all, til...lat'r….GT...