I made some when I was about 10 years old and it did not work all that well. The process to come up with real functional black powder is a little more complex than the procedure I used back then. I just mixed the components and made a slurry with water and let it dry out and broke it up into grains. It would sort of burn and I managed to get a firecracker to go poof but that was about it. As stated before if it is even legal it is quite dangerous and my opinion is to let it be and buy the real stuff. I hesitate to access any information like this on the internet due to the tags that are associated with these type of sites. I would prefer that the Feds would leave me alone and not come to my house to check out a potential threat to the homeland. That said, I am out of this one.