My 1250 dominator now wearing a 22 ci tank with 1800 psi regulator from JDS AIRMAN (fantastic service by the way!!!) it gives me 50 shots at 29.89 ft-lbs using 15.8 grain RWS SUPERFIELD, Oh yeah and a standard deviation of only 6 FPS!!! :-o
I have only done some short range tests (25 yrd) and i'm getting 8 shots into the low .300's, sure i could do better with practice. I am also still working on the trigger, i have machined both the sear and hammer and cemented in some HSS tool steel inserts which has improved the crispness of the break 100 fold, if you have a bridgeport mill and some permatex metal putty get some HSS and get to it.
sorry i try to up load the photos but i cant seem to get them to up load today. will try again tomorrow.