Hey David how many shots are you getting per fill? My .25 sniper maverick is shooting nsa 36.2 @911. And I haven't done a complete shot string for real but I think I'm getting about 40 shots. I do have a 480cc bottle. I bought my gun used from a friend that had it for about 2 weeks and he took a hundred bucks off if he could switch Tanks from one of his impacts. that's how I got the 480.
Still doing some fine tuning. Tim