Thread: black powder data

Originally Posted by Maca49

Because you cannot have an air space it has to be solid from primer to base of projectile. Necked cases can pose a problem, so you use a filler, like ground oats, toilet paper, dacron etc. but no air space! Straight cases are easy, powder, wad, grease cookie, wad, lubed projectile. NO air space!
Also grade of powder, fffg under 45/70 ffg 45/70 and over, ffg cannons, ffffg ignition flint lock

so more fs means more fines,till its ffffffn fine indeed???