beer can

There will be a black powder mortar/cannon shoot this coming Saturday, April 30th beginning at 11:00 AM In Atascadero, CA It's part of the annual five day Rendezvous Black Powder Shoot at the Santa Lucia Sportsmen's Association. http://www.santaluciasportsmen.org/ There's no charge to...

I would like to learn more about beer/soda can mortars. Not only different designs and construction techniques, but actually how to effectively shoot them. Things like: * Aiming such a mortar? * Different loads? * F/FF powder differences in terms of performance? *...