made me dig out a pic of my 9mm Disco Double....
I developed this rifle over a few months, and when Lloyd Sikes of AirGunLab brought out his twin-tube conversion, I got a Beta test kit and slapped it on.... How does it shoot?
Yeah, that's over 133 FPE from a Disco, folks!.... BTW, the valve was mounted with three 10-32 screws to stand the 3000 psi fill.... and the valve was, shall we say, "hogged out a mite".... The rear cocking hammer was necessary to dump the increased pressure.... The riser breech was a one-of.... Fun project....