I have .22 with 800mm heavy liner and get around 1000fps with 40grn slugs. Reg pressure 155 bar. I have just about every factory upgraded part. Power block, heavy hammer spring, tungsten weight, lighter valve spring, huma high pressure regulator, nsa pin probe.
I am considering .30 cal with 800mm heavy liner with 70grn or 68grn what is to be expected power level in FPS or fpe?
I am considering .30 cal with 800mm heavy liner with 70grn or 68grn what is to be expected power level in FPS or fpe?