I have added a 700mm slug barrel, 580cc tank, oval-ed out the barrel and probe, shortened the valve spring, drilled out the valve housing, drilled out the valve seat to 6.1mm, made a Delrin C3, made a 1.25mm thick brass hammer spring weight/washer, and recently received and installed my new plenum from Michal. I adjusted my Huma reg down to 125bar and turned down the hammer spring setscrew adjustment a few turns. So, now shooting the NSA 36.2gr HP slugs at 930fps so around 70fpe. Haven't counted the shots yet but seems to be more than before. Shot a sub MOA group @ 100 yards, after some tuning, and went out to two hundred with it. Wind was not kind to me today swirling and changing directions constantly. Still I managed a couple of three shot and one four shot groups of about 1.5-2.0 inches at 200yards, on steel, the others were more like five to six inches cuz of the wind. The small ones let me know this will be quite a shooter sometime in the near future. A bit more tuning is about all that is left to do other than shoot and shoot and... Oh! That's right I be waiting for my .30 bolt probe to arrive from FX for over two months now. Then I can tune again for .30. Waiting for my replacement barrel for the SK-19, the original was defective, and need to order a new tube so I can finish another arrowgun... I guess I will never really be finished with anything the addiction slyly whispers. ;^)
Thanks FX and Michal
Thanks FX and Michal
