Re: I don't really know how to describe this...
I was into "potato" cannons a few years back. Preferred combustion types to pneumatic... here's the last one I designed/built: a 1" bore, breech loading design with metered propane combustion. Later on I changed the barrel for a Sch. 80 one for greater stiffness. It shoots plastic balls, darts, bullets made of wood, etc. It's fun to play around with.
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