You guys are great, all this good information is exactly what I was looking for.
What information are you looking for? That we're idiots? Why don't you go to Dougs Message Boards smokeless forum and post the same question. Those guys know more about smokeless front stuffers than anyone. They'll collectively tell you the same thing they've told others that have posed the same question. NO.
This is the muzzleloader you're referring to: http://www.ashlandguninnovations.com/#!muzzleloaders/c60z
A custom, hand fitted $3000 rifle. He works up one load for you and provides pre-measured charges with it. Kinda funny, here's something on his FAQ page.
Q- Can i try other smokeless powders in my muzzleloaders
Absolutely NOT. Experimenting with anything aside from the recommended powder and charge risks damaging or destroying your muzzleloader and risk of injury or death.