The Alcohol is a 99% mixture which has an extremely fast and clean burn. I can find it usually at the Wal-mart or Meijers (if you have on of those) its right around the normal Isopropyl alcohol. There is also several First Aid sites etc... that sell 99% online. It is well worth it.

This barrel was ...

Yes to the Treb question. I actually finished it.

and yeah... the handle I originally built out of foam and hot glue. I adjusted the handle until it got comfortable for me.

This is from my first series of cannons. This cannon I originally
called Cloud 9, became known as the "Long Tom" due to its
obscene range. Since I wanted long range the rifling was turned down
to about a half turn per 26". Due to its length it is somewhat
hard to get around. I no longer have this ...

another fun fact is that there are two detonation points inside the chamber.

I ordered it from Spudtech a couple years back when he was still open.

With a partner to reload I can gat about 4 solid rounds off a minute.... It would be faster if i removed the front cap everytime for new air.. .but turning on the exhaust take a few seconds longer... I usually let it run while the reloader is doin his thing.

I hope this helps:

Combustion Chamber Volume (ci/ml): 245.5/4023.3
Supply Tank Pressure (regulated to): 60psi
Fuel Mixture: 7%
Fuel Volume in Chamber (ci/ml): 17.185/281.6
Meter of Pipe: 3/4"
Length of Pipe: 8.12"
Volume of Pipe (ci/ml): 4.21/69

the chamber is made from 4" and converts down to 2 ...

Hello,
I am new here. I ran across your site and thought you guys would like to see
my cannon. I have put hundreds and hundreds of rounds thru this thing, so please
forgive me if it looks dirty or "used". This gun belongs to the second
series of propane powered cannons and this one is the ...