air calculations? (volume and how much is needed to shoot)

[ramenjames]

ok i know volume
(pi x radius sq x lenth (in inches))
but what is the calculation that will tell me how much air is needed to fire sone thing?
please help

[Cristobal]

Take a look over in Deep Blue: Lots of good information there. A search on "volume and pressure" should turn up lots of good threads.

[Gunga]

No double posting.

Closed.