Don't overlook a Ruger American - these new models in LR and WMR are often as accurate, or more than the 77/22s. My 77/22 Walnut did 1/2 - 3/4" at 50 yds with sporter OEM bbl. A ball point spring swap was all I did on the trigger as I recall, and its like a glass rod, believe a bit under 2#.
