Havent shot this gun in forever. Its an orginal beeman crow magnum in .20 from the 90’s. Its in perfect condition however many many years ago I had it detuned around 18fpe or so. Id like to pick up the power a little more on it. Does anyone know the useable pressure range to charge them to? Also, I wouldnt mind having a couple piston seals on hand if anyone knows where to get them.
