Guess I'd have to say my Pardini K12 is 'the' keeper. Had it about two years, after selling my K10 to a friend. It gives me aboit 100 shots per fill at 580fps with H&N Finale Match. 130 shots if I back off the velocity adjuster (hammer spring preload) to aboit 500fps. Puts pellets on top of pellets from a rest. I can shoot 550/600 or a bit better with it on ISSF targets at ten metres. It's quiet, has lottle to no recoil, and the maple grip I carved for it fits perfectly, no effort at all to hold the sights on target. And she's beautiful.

http://www.luthier.ca/other/forum/K12.jpg