@stikshooter, there is a reason to choose Pyrodex over black powder and that reason is cost. As much as I prefer the use of black powder over any of the substitutes, I can not justify telling
@Wisconsin Relic to pay so much more for a pound of black powder than a pound of Pyrodex or Triple 7 when all he needs is enough propellant to meet his needs for the hunting season and he has a percussion rifle not 5 pounds of GOEX, Schuetzen or Swiss powder. The substitutes can put him out in the hunting fields and tide him over until he can find real black powder. Please note: the substitute powder may seem to have a lot less apparent fouling, but that fouling is very corrosive. The good news is that it can be cleaned and the barrel can be protected, but a very thorough cleaning regimen must be followed. Those comments about ruining a barrel after using Pyrodex are relevant when the barrel is not cleaned.