Howdy all, new to this forum, not to BP shooting, Just picked up a CVA Hawken at a LGS, for $25, a lot of rust, and some damage to the stock. The barrel has some serious rust, but the lands and grooves are visible, so far I'm using some PB blaster, and a bronze bore brush. Any other advice as to how to rid the barrel of the rust? Cleaned out the nipple, so it's clear, there is no stuck powder, or ball ( first thing I checked), any help would be great! Thanks.