A friend used it for blank charges during some of our reenacting public displays.
It said he wanted it because it's "non corrosive" It did go off when primed with GOEX but the stuff was a lot more sensitive to our humid summer weather.
I can't remember exactly, but I think Bill Monk said it was a "sugar ? " based powder
I do know that our local shop carries it and it's a lot more expensive than GOEX