Mine puts a few small scratches on the brass. I think it's getting better though. Question for you and other 84M owners, if you cycle the bolt all the way back, does it grab a bit just as you start to push forward? Mine does if I have any amount of pressure pushing up on the bolt handle. As long as I push level, or with slight down pressure on the bolt handle it's very smooth. Occasionally gets me when cycling very quickly.
