Has anyone tried using CO₂ instead of compressed air for a pneumatic cannon?

[annasm]

Hi everyone,
I'm researching using CO₂ as the propellant for a pneumatic cannon instead of a regular air compressor.Retro Bowl I'm curious about real-world differences in pressure stability, performance (range/consistency), and how CO₂ affects valves, seals, and other rubber/plastic components over time. Are there specific safety or legal concerns to watch for when using CO₂? If you've tested this or have experience, could you share what worked, what failed, and any setup tips or precautions? Thanks in advance!

[jimmy101]

search spudfiles, there are lots of posts using CO2. Usually people use paintball tanks and regulators.

[D_Hall]

LOTS of folks have used CO2. How it behaves depends greatly upon how you intend to use it. It could be anywhere from indistinguishable from air to a very exotic critter. You haven't really told us what you're planning on doing.