Hi all, just thought that I would report back on some testing.
Purchased a combro b- 625 chronograph and pushed some pellets through this afternoon.
Filled the Ultra to 220 bar according to the gauge on the bottle.
First ten shots between 706 and 721 fps.
Shots 11 to 50 between 730 and 753 averaging 744 fps.
By my calculations, this shows the Ultra pushing 10.33 foot pounds, which is a little under power I guess.
How does this sound, to me this seems fairly flat in terms of power curve and with 40 fairly consistent shots shoul get through a HFT session?