I have a rem. 700 bdl chambered in 300 rum with severe copper fouling issues. I can fire 10-15 rounds at the range and spend 3+ hours trying to get all the copper out. I've used sweets, cr-10, butches, and jb. They all seem to work well but the copper just continues to keep coming. I've talked to other people with the same gun and none of them seem to have neer the problem I do. I can't really afford to rebarrel the gun anytime soon so I was wondering if there was anything I could do to the barrel to help reduce the fouling a little. Any help would be awsome.