I know not many have much intrest in the gun, but Ive been testing and tuning a balanced valve for it. The porting in the gun was fine, its .300 but the restriction is at the valve throat, at .255 plus a .118 valve stem chokes it. Kalibrgun clearly did this to shrink the poppet diameter since the hammer system cant even really open it at 125 bar. Opening the throat to .320, with a poppet at .380, and the step of the poppet at .250 with a .048 vent worked decent at 150 bar. I swapped in a huma reg, and a second 100mm plenum. Factory barrel slugged at .3555 and .351 with no choke. Im finishing up a few other projects but ill get some pics up. Oh, I also put a 1 degree leade on the chamber and it chambers .356 nsa slugs smoothly now. Minimal tuning shows 200fpe as of now. No accuracy test yet but coming soon!
