It's hard to beat a good Model-70 Winchester - regardless of caliber!

A close second is a good 98-Mauser (on which the M-70 Win was based). After all, the several millions used by the Germans (TWO wars, remember), Dutch, Boors, Cheqs, etc. should show the the 98 just plain works.

Now, a better question than "the worlds best rifle"; what caliber do you want? And, why?

Reggie