Yulzari, let me bow to your knowledge. Being that i am only playing by ear, just to give a fight to Jim
, i don't stand a chance to mess with your expertise. The thing is that we find a zillion works out there on the problematics of powder but never a comparison (technical or not) between the various powder products, in what touches their difficulty degree of preparation. All i can reach is that, the mill that makes powder for guns is able to make it for all less demanding purposes; such is the case of the main Portuguese powder factory. Previously the Royal armoury smithy, started making black powder in 1729, with four limestone galgas (mills), later replaced by wooden ones, with bronze hoops, containing in their interior metallic spheres to add weight to the setups, still making them more maneuverable; an invention with a replica now exhibited in the factory museum. Powered by the nearby water stream; modified to steam power in 1879, to electricity in 1920, diesel in 1924 and finally a hydro-electric group. It is to believe that the Portuguese could make a decent gunpowder since early days, judging by period chronicles. Yet in these facilities they produced powder ('pólvora') for hunting, mining, quarry, cannon, signals, and artifice fire (fireworks). Even when the factory started producing chemical powder in the 1940 decade, they maintained the fabrication of foguetes (firecrackers) and luminous artifices.
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