I have an 1873 Springfield. The rifling is very clearly defined and there appears to be very little pitting, but the bore is dark. No amount of scrubbing will clean it out. I've even gone so far as to attach copper pot scrubbers to a wooden dowel and running that up and down the barrel with a drill. No matter what I do, patches always come out dirty. is there some way to clean it out once and for all?


















































