I did get some Alliant Black MZ and while its the same composition as what I make, there is a significant difference in power. I can see no difference between the patent and what I am doing, but it does not specify cook times.
The stuff I'm making is a dull reddish brown. I had assumed Alliant was actually adding some sort of coloring to make it look like black powder. If when I actually thoroughly cook this stuff it comes out looking black I will be sufficiently humiliated.