Knife - that's very impressive.
I've got a problem I'd like your input on as I've noticed an issue since installing the Huma reg. I can't be sure how off the reg is, but it seems like it's way off from the scale on the side - like 30- 40 bar off. I've gotten it set at what I believe is 70 bar, but I can't be sure. Thing is the speed has been all over the place. I think we're past regulator creep at this point as I've got the H&N 18 set for 700 fps - or thought I did until I refilled the gun. At full fill it's shooting 690ish and by the time the gauge is reading around 120 the speed is up to 730-740 fps.
I'm going to put the stock reg back in and see if the fluctuations go away.
Any input would be appreciated as my .30 is super stable in terms of fps string from a full tank fill down to 160 bar.
Determining reg set pressure -
Add some extra hammer spring and fill a bit above what you think is the set point. (You can go higher, just going to use more pellets)
Close your tank/compressor valve but leave the fill assembly attached. This way your fill gauge will show the gun tank pressure. Shoot a string and when the velocity suddenly drops you are at the set pressure.
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