If you haven’t already done so, the first step with a typical regulated PCP is to adjust the hammer spring tension to be in harmony with the regulator setpoint. To do that, start by finding the velocity plateau…the maximum achievable velocity. In half turn increments, increase the hammer spring tension (HST) until the velocity no longer increases. On a DAR, the adjuster is the large cap at the back of the receiver…when you turn it clockwise, you’re squeezing the hammer spring, putting more preload on it.
You should reach a point where continuing to increase HST does not produce any meaningful increase in velocity. And then once you’ve found the max, dial it back to about 97% of the maximum. So let’s say it tops out at 940fps, dial it back to about 940*0.97 = 912fps.
When adjusted in this manner, the extreme spread will tighten up. If for some reason it’s still not acceptable, report back and we can help guide you toward other things to check.
Owned for 6 or 7 years never got to a match back yard range only . sent to Martin for a checkup came back as new . Holds air for ever. Single shot Covid shut matches down and so I moved on to other disciplines. 7x500 18.13 jumbo heavy, 6x200 23.39 jumbo monster both sealed. Sizing die and pellets included. Optics not included.
or there about.
The targets y’all use are awesome. I’m gonna make a trip up there to do an Extreme FT with y’all this year. Thanks for sharing.
