Did a search but didn't come up with anything.
Does any one know how a gas piston affects swept volume compared to a spring? Like a formula or anything.
Example: I have a air rile with 55cc swept volume and with a spring I get lets say 650 FPS with a 14.5 gr pellet. Is there way to calculate what possible FPS could be achieved with same pellets with a 450 newton, then a 750 newton and then a 1250 newton gas spring without having to assemble and test fire all three?
I would assume that the gas spring would compress and push the air faster than a spring?