Backyard BallisticsThis forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum.
I suggest you drill large holes into the tree and fill with blackpowder you buy from a store for muzzle loaders. Anything else is apt to fuck you up in the manufacture process.
Blackpowder is nothing to sneeze at either. It can easily take down any tree as long as the holes are drilled right, and the BP is loaded properly, with a quick match system that will light them all at the same time. Or ematch, whatever.