I'm not sayn' I'm a pro, but what kind of rifle do you have? Where I come from, Black powder is a gun thats either a flintlock or a cap and ball, that requires black powder. A muzzle loader is an inline, or other, that can use a black powder substitute, like Triple 7, with a 209 shotgun primer. Older guns, and even some newer guns, use the small copper cap, small and hard to put on (cap), thats why most switched to 209 primers, plus 209 burns hotter, and more reliable.