Tuning FX M3 22cal sniper first regulator pressure drop

[JasonW1972]

My FX M3 snipper is dropping pressure in the first regulator after sitting for about an hour it drops from 155bar down to 137 bar but does not go below the 137bar. I shoot it once and it goes back to the 155bar but slowly starts to loose pressure after a few minutes of sitting. My second regulator is at 120bar and stays there.

 

[cmatera]

Could be the reg, could be the crap FX gauge, on the first reg. The other 2 gauges are WIKA (2nd reg and bottle). First thing I'd do is replace the non-WIKA gauge. My M3 didn't get fired once. It on the way back to Ken Hicks to make it right.