The .338/' 06 is the modern equivalent of Elmer Keith, Don Hopkins, and Charlie O' Neal' s classic masterpiece, the .333 OKH, which Keith found to be the only modern smokeless powder U.S.-made round which was really adequate for elk, moose, and large bears (Circa 1945 or so). Properly loaded, it will produce velocities within 100-150 FPS of the .338 Win. Mag. In addition, you can use .35 Whelen or .30' 06 brass tp make it, instead of buying Weatherby ammo, which is pretty expensive, even for such a mundane round. I have wanted one of these for years, but will probably never again hunt anything big enough to really need it.... Still don' t understand why any of the major manufacturers besides Weatherby haven' t chambered any rifles for it. I think it is as good as the .35 Whelen!