I have filled my Hatsan 135 vortex with a Chinese hand pump, I have several of the pcp fill probes.The last time I filled it to 130-140 BAR, I suspect the gas ram has leaked a little.But for now I will not tear into it. My 155 torpedo is still in pieces after 2 years.
I had the best of intentions, I have polished the compression tube and piston. I have a brand new seal and spring for it. But the Quattro trigger has confounded me. It is a very sad thing.