Actually the New E&G Racer is among the best, Bleiker likely a close second, then Anschutz, FWB, Walther (not the sporters, the match grade rifles) all compete, and most still need some fiddling to make them accurate.
you can take a Sako P94s Sako action and turn it into a good shooter but you need to rebarrel it, Anschutz is likely the best rifle make as they do offer a lot of different configurations and they consistently shoot very very very well. the serious shooters typically rebarrel an anschutz if they want a real shooter. Bleiker uses a Lilja barrel on their most accurate offering. Expect to pay around $4K for a top shooter.