FX FX400 22 cal

Scott, sounds like what happened to my Boss when its regulator finally died. I replaced it with a Huma (around $80ish) instead of OEM FX reg per Centercut's suggestion. BEST thing I ever did to it! I watched Ernest Rowe's videos & had Huma set it for 160bar before shipping it out to me. Not sure what the 400 reg should be set at. Accuracy, power & shot count has never been better in my Boss. Get in touch with me if I can help.
Gerry
EDIT: FYI, I did try to rebuild the OEM reg twice before ordering the Huma but couldn't make it right. I'll try to post links for the vids I watched.
 
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