I just got around to replacing my leaking O ring in the frame of my Impact from all of the times I removed and replaced the regulator when I was doing beta testing for the HUMA impact replacement. After I replaced that O ring (a real SOB), I decide to tune down my rifle. I removed the FX gauge and replaced it with my Fluke digital gauge and set the pressure to 115 bar. I left it on for a couple of days while shooting it occasionally. I decide to replace the gauge with one of the Wika 315 bar gauges I purchased a while back. https://www.csgshop.com/product.php?id_product=248 I pressured up the Impact and the Wika needle was dead centered between the 110 and 120 bar marks. When I get time I'll hook the Wika and the Fluke up to a manifold and check through a range of pressures.
Since tuning, I am getting 884 fps and the Impact sounds like a BB gun. The rifle is a tack driver and using less air. I might tun it down to 100 and see how that works.
Since tuning, I am getting 884 fps and the Impact sounds like a BB gun. The rifle is a tack driver and using less air. I might tun it down to 100 and see how that works.
