I have a stock Ruger M77 MK 2 varmint/target in .243. It has been a pretty decent shooter over the years: 3 shot bug holes with Hornady 65 gr V-Max, Opens up a bit when taken to 5 rounds. I have also shot some 85 gr 5 shot groups under one MOA at 100 yards.
I have been dreaming about a 6.5...