I have put an adjustable regulator and 22ci bottle on my Notos. I was thinking (not a good thing at times) that l would get around 60 or more good shots. I filled to 250 bar and got 52 shots. I tried filling to 3300psi and got 30 good shots with 13.43 JSBs at 785ish. I would like to fill around 3300psi if possible. I have my hammer spring all the way out and regulator set at 2450psi. I was thinking l might be wasting air with hammer strick. Anyone know the od, length and thickness of the stock hammer spring? Would like to have a couple springs, on hand, before tearing into gun. I am trying to set my Notos up for a hunter field target gun so less than 20 foot pounds and 60+ Shots per fill. Looks like l need a much bigger tank. I have a RAW and TX200 setup for hunter field target so just a fun project. Thanks for any help. Don