Set the Huma to 150bar. Filled it yesterday and after cooldown was cylinder read 230bar. Checked 12 hours later, 230bar.
Fired a 9 round magazine with my cheapo Chinese chrono hanging on the moderator.
All between 877 and 881 FPS
JSB Exact Diablo 44.75gr. 8 rounds at 25 yards essentially hole-in-hole and 1 I pulled due to the trigger.
9 rounds dropped the cylinder to ~205bar.
I'm good with that, not going to try to tune it any better. Do have to tighten up the trigger, just a touch and it fires. Looking in the manual need to lengthen the first stage (A screw) and increase the pressure (B screw).
Down side of that, have to pull the cylinder, take off the stock and turn the manometer enough to get a 2 or 2.5mm Allen to the B screw. I can test the trigger with the stock off, dry fire. Less than optimal design. It sure isn't an easy process like where the adjustments are right on the trigger assembly accessible from the outside.
Haven't decided if I'm keeping it or not. It does fill the .30 Bullpup(ish) slot.
Thanks for all the advice, an excellent rifle back to like new.
-- Matt