First is Germany (highly prized, Sauer I believe) and then in Japan (Howa) and then by the company that made the M-60 machine gun, Marmount (but don't hold that against them). Mine is a gorgeous yet very functional rifle, synthetic stock and stainless steel barrel. The stock I think is made by McMillan and the barrel by Krieger and both are of the highest quality. Ever since the first grade I wanted a Mark V Weatherby and by the time I was 37 I had one complete with Leupold VariXIII, and it shoots in the inch range with most ammo.
I don't know a lot about Weatherbys. I thought Howa made at least some of them. The M60 was a fair to middlin bullet launcher.