I have to concur with Randy on this one! After reading an article on this subject by Ross Seyfried in RIFLE Magazine, I decided to try it to see if I could get the " miraculous" , fouling-free shooting he said he gets with actual black powder. I have been shooting muzzleloaders since around 1954, and had always been bothered by the fouling problem, despite always using plain boiling water to clean my guns, and a product like Sheath or Break-Free for after-cleaning protection. I followed Seyfried' s published instructions EXACTLY, and almost ruined two prized barrels (one a Bill Large, made of chrome-moly steel, the other a Green River Rifle Works .577" ) due to after-rusting which occurred when Bore Butter was used as a preservative! I ABSOLUTELY warn EVERYONE against expecting Bore Butter to protect a clean, modern steel barrel!! I don' t know if it would work OK in a " soft-iron" type barrel of the old-time muzzleloader type, but would not take a chance on it !!

No more " seasoning" for me!!