Originally Posted by
Muley Hunter
I've seen no proof from anybody that charcoal is added to subs for just smoke.
btw BH 209 is not legal in CAS shooting. They aren't fooled that it's a smokeless powder. Any BP or sub that won't clean up with water is smokeless.
btw btw.. Does BH have charcoal for smoke?
Look it up, BH contains something that makes smoke

we also know charcoal isn't needed in 777 to make it ignite. so take a wild guess as to why they add it.