whats the biggest black powder?
not a big black powder guy just really curious
I'm assuming you mean granulation size for firearms use....so that would be Cannon .
From smallest to largest;
4F (FFFF) - used for priming flintlock powder pans
3F (FFF) - small caliber bores/cartridges, pistol
2F (FF) - larger caliber bores/cartridges, rifle
1F (F) - muskets
Cannon - well, cannon!