Micro Air Usage question

[martlet1]

When I played a scenario game this weekend I noticed that I was using a hell of alot of air. About every 700 shots My tank was dead. Is this normal for a 68-3000 tank? I actually have only used this in tournaments where i only shot about 900 all day long. I literally had to refill after each game. Is this normal for a mag? and if so how can I get more shots on the tank, if possible. Thanks in advance. IM still learning this marker :)

Im using micro line with a gas through grip on a micromag.
http://www.showme.net/recreation/semorollerhockey/micromag.JPG

[theraidenproject]

yep. thats normal for that tank. a rough estimate for shot capacity is 10*ci for 3k psi tanks, and 15*ci for 4.5k tanks. i havnt tested that, though, on my system x 88/45, because i topit off whenever i have the time. nice gun, by th way. i like the black/red.