OK, I'll step out on a limb... IMHO, I'd say the Daystate Red Wolf HP in .22. It has the LW Polygonal barrel, can shoot the .22 caliber 25.4 grain JSB "new" Monsters at over 900 fps (with BC as good or better than .25 JSB MK2 heavy), is fully adjustable with different power levels, has an amazing trigger, gorgeous stock, lots of shots per fill, super accurate... You could set one power level for maximum FPE with the Monster .22, one power level for the 18.1 grains at around 885 fps, and another power level to shoot low power if in a barn or indoors where you don't want to damage anything, so like the 16 grain JSB at 20 FPE. Put a great scope on it like the Vortex Razor HD LH 3-15x42, great glass, very light weight, great reticle and you've got a winner...