I thought aluminum would be a lot of fun to work with. Yuck! Very expensive and to weld this gage is... well it is also very expensive. Should look really great when polished though. This is a 1.75" bore and is shy of 3' long That's a Jorgenson clamp with a dollar bill on it for size. The other shot is of my ammo. I make BP at ~5#/batch so I'm almost there. This is the cannon I want to use electronic ignition on. I ordered some stuff that you supposedly dip your wire tips in, it dries and that's it. We'll see. I need an elevator and don't have any ideas as of yet. I also want to sight it and no ideas in that area either. I like a really strong green laser. Sigh, the more cannons one has the better life is.