Perfect ball mill black powder (easy)

The traditional ratio of chemicals, as originally designed by the ancient chinese architects of black powder which was first used for rockets and other items of ancient warfare, is 75-15-10.
75 grams salt-petre aka potassium nitrate (KnO3)
15 grams charcoal, aka carbon
(C)
10 grams sulfur
(S)
and that is per 100 grams, with an optional 5 grams of dextrin to act as a drying binder, making a total of 105 grams, I tumble the dextrin in for just 20 minutes in the ball mill after the 6 to 8 hours tumbling the main 3 ingredients. After tumbling in dextrin, I wet it down just slightly, just enough to make it as moist as clay, using rubbing alcohol so the drying process is quite fast, I then clump it very tight by hand with gloves into a ball and then rub that inside of a screen, to form granules that make excellent muzzleloader ammo fuel. For sulfur free powder, I do the same thing, except the ratio is 80 parts potassium nitrate (KnO3) to 20 parts charcoal (C). To make good pure sulfur, I bought "Lilly Miller's Garden Sulfur" which is only 90% pure sulfur with 10% additives, and mixed a few cups with water, stirred well, then ran that thru a coffee filter, since sulfur is not water soluble, the 10% impurities go thru the filter, the sulfur stays in the filter, I take that big ball of yellow and let it dry out, now I've got 100% sulfur.