I have been tinkering with my Ghost, swapped springs out for the White spring and then Blue spring, and testing different reg pressures and now it is only able to achieve ~620 FPS with the following configuration.
BRK Ghost .22 HP
23" barrel
Red Hammer Spring
Tank ~190 BAR
Reg ~165 BAR
PW Max
JSB Exact RS Diablo 13.43 gr.
FPS = 622 (highest)
When it first arrived it was cranking the JSB Hades 15.89 gr pellets at close to 1030 FPS with the following configuration:
BRK Ghost .22 HP
23" barrel
Red Hammer Spring
Tank ~190 BAR
Reg ~150 BAR
PW Min
JSB Exact RS Diablo 15.89 gr.
FPS = 1030
I am charging it from a Yong Heng compressor with this secondary
water/oil separator in line between the compressor and the gun.
I should also mention that when degassing the gun it is taking 15+ shots with the PW on MAX setting before the reg pressure drops below 50 BAR, not sure if this is relevant, but from my limited experience/knowledge it seems to indicate that perhaps the valve is not opening fully?
Any thoughts or suggestions on what might cause this behavior?