Hey guys,, I am a newby to this forum today. I really don't want to talk about this, but I have been really bummed out, I think need more experienced advice. I rebarreled my dads 1951 commercial Belgium mauser to 6mm Rem about nine years ago..Douglas ss 1 in 8 twist 26". All was swell. Then after a while couldn't get it to group, Especially with heavy boattail bullets... I rebedded it 4 different ways, 4 different times.. finally decided wasn't bedding. Talked to my Smith one day and he asked me if I was using ss brushes on it. Said Yes.. he said it was ruined.. but I wasn't ready to give up on it.. so I have been using JB bore shine on it.. The rifling is all there but smith says its like tree bark inside..He also mentioned using steel wool wrapped on a 22 cal brush, anyway, this is my dilemma.