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MadMax · March 29th, 2006, 02:24

The density of propane as a liquid is roughly 300x as dense as gas at equivalent density (weight/volume). The space in a mag is quite limited so you need to store propellant in a dense form. You also get constant pressure behavior (assuming you allow the mag to warm between shots) from shot to shot with a liquid phase. Straight gaseous phase would mean a decay in pressure with each shot according to your ideal gas laws (remember high school chem?) which don't apply in 2 phase systems (liquid present).

March 29th, 2006, 02:24	#13
MadMax Delierious Designer of Dastardly Detonations Trader rating Join Date: Dec 2001 Location: in the dark recesses of some metal chip filled machine shop	The density of propane as a liquid is roughly 300x as dense as gas at equivalent density (weight/volume). The space in a mag is quite limited so you need to store propellant in a dense form. You also get constant pressure behavior (assuming you allow the mag to warm between shots) from shot to shot with a liquid phase. Straight gaseous phase would mean a decay in pressure with each shot according to your ideal gas laws (remember high school chem?) which don't apply in 2 phase systems (liquid present). __________________ Want nearly free GBB gas?