Welllllll....judging by the name, how about the Tikka SUPER Varmint
OR ... how about the exact same rifles, but with top quality handloads
More Seriously though -> For a better answer, you probably are going to have to define the parameters that you want to out preform...by what are you judging the rifles, and what abilities/qualities are you seeking in particular?
I will make a few general statements though, based on my experience, taking varmint rifles from several manufacturers and putting them side by side you may have a hard time determining a huge difference between how any of the better offerings on the market shoot. ... though with any, I presume you could luck into (or out of) a particularly good or bad example.
Though I've never fired one, I would presume that a $2500-$5000 custom rifle would be on an entirely different level; the kind that only a very very skilled shooter could find the limits of.