On the tv last week Na Geo had a thing about makeing big bangs,and covered black powder, most people wouldnt belive how easy it is to get and make pure, they scraped it off old walls inside a house! And bird and bat poop, and right off the top of the ground dont know why the North had a near panic cause they about ran out during the CW, sent a guy off to come up with another kind of powder, it was always to powerful, lucky they didnt have to use it since the place that was being used got blown to hell and back. The tree has everything to do with how fast,slow it burns, and fouls the barrel, I always thought (till I read up on Curtis and Harvey's #6 it was the saly peter content that made the bang, but you dont even need it to make usable and powerful black powder,Im still not sure how much glazeing has to do with it all than keep it from falling apart, never got that much into it,but can make it out of 10 to 12 differen things as long as you have at least 3 things to mix, Fred :hatsoff: