in 6.5 Creedmoor scratches the shell case at the curve of the shoulder about 1/8" to right of TDC. Not a long scratch but deep enough to catch a fingernail I burnished every sharp edge on the inner topsides of the action I could reach with a curved hard steel pick but a chambered case still gets nicked a bit.

Has anyone had a similar problem? Suggestions on what part of the action might be scratching the cases? The chamber mouth does not appear to be buggered.