GTA
All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: Nutcracker on November 07, 2019, 07:24:50 PM
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On the Vulcan Gen 4 .25, what is the factory reg pressure in .25 cal set at. Has anyone put a huma reg in theirs and increased the FPS. Currently shooting at 890 with 25 grains I would like a little more maybe 920 . Adjusting the hammer spring does not increase it any at all, first PCP I had that hammers spring does not increase ft pounds. I have the rest of my .25 cals shooting 920 plus and they are still accurate. I am not concerned about shot count at all, so if that suffers not a concern.