uhh guys he is actually right. Savage does make a muzzleloader that can handle both smokeless and blackpowder. Its the 10ML. here is some info on it.
Call it innovation...call it thinking out of the box...at Savage, we call it listening to the needs of the hunter. That's why we developed the world's first smokeless powder muzzleloader. The 10ML-II's barrel and hardened breech plug are designed to safely contain the pressures from shooting smokeless. And, since smokeless powders are non-corrosive, the 10ML-II is a muzzleloader hunter's dream come true--clean it next week or next month--you decide.
The 10ML-II is loaded with options. Use smokeless powder, black powder, Pyrodex or other black powder substitutes--the choice is yours. Set trigger pull weight to your own requirements--the revolutionary AccuTrigger is a standard on the 10ML-II. This 50 caliber rifle with 209 primer ignition can deliver 1 1/2" groups at 100 yards and produces velocities exceeding 2,300 fps. With more than 3,000 foot pounds of knock down energy, the 10ML-II is muzzleloading perfection that caters to every taste.