Re: 308 Lapua brass
First, you'll need to accept that a certain amount of scuffing or marking is perfectly normal with this type of rifle. Service Rifles (like this) are made to function, regardless of dirt, mud, improper lubrication, whatever. The trade off here is that they're not very gentle in their cycling or operation. Pretty darn brutal, in fact. So long as they're just surface scuffing, and not an actual cut with gouges the metal, the cases will be just fine and should reload normally.