Black powder is usually a reduced explosive content comprised of potassium nitrate (saltpeter), sulfur and charcoal. While utilized being a propellant in fireworks and pyrotechnics, it is also utilised in certain ammunition and muzzleloaders. Luckily, There are many other manufactures of black powder that remain in business. And, For anyone https://greatgotfirearms.com/product-category/black-powder/