SpudFiles

I know everyone has their favorite that they love to use. So what is it? And why? Personally, I've gotten the best results from butane.

I like propane. Its cheap and doesnt leave any residue and best yet is powerful.

Propane for the same reasons. A canister is $2.99 at Home Depot and I get 150+ shots on one (in my 200 cubic inch combustion). No residue, lots of power (very loud, too), and its cheap.

Butane works well too, but is more expensive and harder to meter precicely.

Peace,
Pete Zaria.

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The Butane I use is in a lighter fuel canister, which is just liquid Butane in a spray can. Just put an atomizer from any other spray on the top of it and it's actually very easy to meter. You just need to hold the can upside-down in order to get the liquid, though. It's still pretty easy to do, and is very effective. My cannon has a chamber of around 150 cubic inches, and it fires potatoes more than 300 feet with just a 2-second burst of butane.

Did anyone else hear about the dude who tried using Nitrous as a propellant for a PVC gun? He ended up in the hospital with shrapnel injuries.

there is this stuff that they sell at my local kmart its likr 80% butane and 20% propane. it also cheap 4 cans of it for $7 AUD.