The propellents they used in the article included Goex FFg, Goex Express FFg, Swiss FFg, Scheutzen FFg, American Pioneer FFg, American Pioneer sticks, Jim Shockey's Gold FFg, Jim Shockey's Gold sticks, Pryodex RS, Pyrodex Select, Pyrodex pellets, Black Mag3, Goex Pinnacle FFg, and Goex Pinnacle EZLoads.
What I was getting at is that some of the powders tested in the article are the same ones we use in traditional muzzleloaders. Again, all testing in the article was done using modern rifles, but I felt the findings may still be of some interest.
Larry