in my thompson center manual it says to season the barrel use only soap and hot water for cleaning and to rust protect use bore butter. im wondering if this cleaning method is good enough to clean out all the gack and lead from shooting maxi balls and round balls.ive used bore butter to coat the outside of the barrel but it doesnt do much for protecting from rust and gets nasty looking around where the cap goes off so i now use a good synthetic oil on the outside. it protects the finish much better. does anyone clean a cap lock with hopes or is hot soapy water good enough. should i use oil to coat the rifling instead of the bore butter?