An early means of testing the proof of alcohol was to wet gunpowder with the whiskey. If it burned, whiskey was at least 100 proof (50% alcohol) If it failed to burn, it was lesser proof.
Assuming you are of legal age to purchase, black powder or smokeless powder for reloading can be purchased from gun shops. Yes, proof of age is required.
There are some pictures at the related links below.
Black Powder.
Gun powder is always a mixture.
I think what you are seeing is in actuality PN which is a proof mark and stands for polvo negro or black powder. It is most likely a pietta or san Marco made gun.
gun powder was udes for fireworks, then weapons
Gun Powder is the most important thing in a war because if you don't have gun powder you wouldn't stand a chance.
Gun powder is a powder.
Because China invented gun powder.
Saltpetre+sulphurSaltpeter + sulfer = Gun powder
Gun powder contain sulfur and carbon; they are nonmetals.
you go to the viking mountain and use the gun powder