I just recently discovered that I can consistently ignite BH 209 in my side-hammer 45 cal. muzzleloader that uses a #11 percussion cap! Just pour 5 grains of Pyrodex RS, or Black powder down the tube first as the primer charge, then the main charge of BH 209. It will go "BANG" every time. BH 209 is more "energetic" than Black or Pyrodex so you use less of it than the other options and swabing between shots isn't necessary, and it's much easier to clean too.
I'll be looking at shooting it through my 12ga. TK-2000 muzzleloading Turkey shotgun soon as the weather give me a chance to get out and try some loads.
Two problems with BH 209 though:
1) It's hard to find in stock.
2) And it is $36 for a 10 Oz. jug.

Like the old commercial said..."try it, you'll like it!"