A general note on this thread: I've found Dyna Bore Coat to be very effective in barrels with visible marks, whether from reaming or hammer-forging.
I'm not all that fond of such barrels myself, but do end up doing test write-ups of rifles with very visible reamer marks and consequent copper-fouling problems. Anymore I just install DBC, which allows me to get through the testing without having to clean the bore several times.
