Myself, I would avoid acetylene too, but for a totally different reason. If you stick to oxy/propane(or your hydrocarbon of choice), you can always pressurise the chamber for mo power. You already have a rupture disc, regulators, gauges, etc. It's not a whole lot harder to add twice the fuel and ...

I though I'd throw this out here and see what the diy cannon community thought. :D

We're generally disapproving of acetylene for safety reasons , favoring fuel/air hybrids for greater power that is easier to control, but if you can build it with a sufficient safety factor it would be fairly ...

Given it's literally in doodle stages right now, but I figured since I have loads of 'free' money and access to a machine shop now, I have the ability design a bit more than a smol project, so I though I'd throw this out here and see what the diy cannon community thought. :D

https://i.imgur.com ...

I originally designed the cartridge for a pneumatic type, but forgot to modify it for the hybrid function :P
and thank goodness hgdt exists, I'm not good with trig.

The shells are for a sense of realism, and because people would just grab used balls and stick it back into the cannon, and ...

First, let me state that this is my first project with any cannon, maybe a tad ambitious, but I'm optimistic about it.
The plan for this is to be used in simulation combat, me and my friends will go out for 1-2 weeks at a time, usually involving vehicles, I was tasked with arming and armoring them ...