If you want to "move it on", I'll buy it I already have one in .22 FAC and would love a 12ftlb .177 to play with.

But just a quick question - what pellets are you using ? "Standard" 8.4gn or are you trying heavies (Bis Mags for example)? If its heavies, then it won't make the 780 you've set it at as it would be FAC.