chamber size

[roughboy]

Ok, i need help. i'm building a pneumatic tater gun and i wonder which chamber size should i use that will produce more power.
1/2''x 2'long or 2''x 2'long
the gun will be running at 200psi.

[Carlman]

withe the same valve and barrel for both chambers the biggest volume will yield more power, surly you know this?

[roughboy]

just making sure

[Biopyro]

Model it in GGDT. This will quantify your answer and allow you to play around a bit.