Title says a lot of it. Everything is back together, old faulty reg is out, new Huma reg is in. Gun holds air and fires just fine but is only slinging the lighter 15 grain JSB's between 765 and 770 fps. I've watched what I can find of video's on YouTube and I have made it this far but the last step was supposed to be turning the hammer spring in to increase power. The video's say turn 1/4 turn at a time and check over chronograph. I've turned the hammer spring in at least 5 or 6 full 360 degree rotations and I don't have a single bit of increase in power out of the gun.
Does anyone have any advise or info they can help me with please?
Thank you in advance!!
Cliff
Does anyone have any advise or info they can help me with please?
Thank you in advance!!
Cliff