If you're worried about accidentally mistaking smokeless powder for black powder or its substitutes, don't get too worked up. Nitrocellulose based smokeless powder is ALWAYS clearly labeled as such. As long as you stick with black powder or an acceptable substitute like Pyrodex, Triple Seven, etc... you won't have a problem. Now, where you may get confused is that the DOT classifies most black powder substitutes as "smokeless propellants" rather than as a "low explosive" like black powder, and the DOT label on the container will say smokeless powder, but the label will also say that the powder is for use in muzzleloading firearms. Nitrocellulose based smokeless powders (which are the smokeless powders that actually produce little if any smoke) will all have a warning on the label that says it is NOT for use in muzzleloading arms.

The only production muzzleloader that can safely shoot smokeless powder is the Savage 10ML and 10ML-II, which you don't have so don't worry about it.

When you go to buy powder for your muzzleloader, and you're not sure what's safe to get, please make sure you find one of the guys from the gun department and ask them. They should know exactly where you need to look (unless you're at Wal-Mart, but the great thing there is that Wal-Mart doesn't sell smokeless powder, at least not in my area).

Mike