No, but yeah, poor choice of name for this product.
It's a plastic cartridge with a measured powder load and a seat for a primer for Traditions (at least, so far) muzzleloaders.
Supposed to be much easier to use, much cleaner, and most importantly impervious to moisture.
Seems like a cool idea.
That's a neat idea, but that's only made for a specialized gun. Can't just pop those into one of Leadeye's old revolvers, or a flintlock, etc..