I know this has to have been discussed a 100 times before. a few days ago I bought a NC flintlock mountain rifle from a rifle builder. "don't have it yet" he told me on the phone he has never used soapy water in his barrels. he said he has used WD40 and advised me to do the same or use butch's black powder bore shine. he said he has a 32 cal. rifle he built 40 years ago and the bore looks brand new and it has never had any water near it. what are yall's thoughts on the matter?