timebmb757 wrote:Also: Is the difference in gas efficency bettween a cloud and a vortex a major one?
Yes, the vortex is far more efficent, but the exact number of rounds fired is entirely dependent on the exact design of the BBMG, so I can't put any exact figures on it, but for ball park figures.... I believe that 24 oz of CO2 will do you about 8,000 to 10,000 rounds in a decent vortex BBMG, and about 3000 to 4000 in a cloud.
A cloud usually only achieves about half the rate of fire - and as is the case with these things, a low ROF means more gas used per unit time (nothing in the barrel equates to lost gas). So you're using gas faster, and getting only about half as many BBs per unit time - as such, clouds are not popular for CO2 use.
In fact, in the great scheme of things, clouds aren't hugely popular at all these days. They see odd use, but if someone wants to do a BBMG "right", they do it the vortex way.
However, like I said, these figures are just ballparks, but I would guess they were in the right sort of range, although I can't be confident that it will hold for any particular design.