My Weatherby Mark V Ultralight 280 Rem is the best out of the box rifle I've ever seen, but it doesn't qualify here.
What does qualify is my Rem Model 7 in 7/08.
That little gem shoots just about anything into nice little groups.
It particularly likes my handload of 145 grain GrandSlams and 49.5 grains of RL19.
140 grain factory CoreLokts shoot almost as good.