I don't own either. Have shot the .460 Wtf Magnum, the .500 Jeffery and the .505 Gibbs.

If you want the cheapest, you'll find a .460 Weatherby Magnum easily in comparison to the other two. Lots of people buy them, very soon after resell them. Because all that un-necessary velocity causes a lot of sharp painfull recoil. Why bother with all that velocity? Are you sniping with your .460 at 400 metres?

Big game is killed by wound channel and penetration. Bullet construction. Bullet weight, section density for penetration. And calibre size for wound channel.

But something in the brain, or spinal cord and it will collapse. Hit it anywhere else and the above is more relevant.

My vote always goes to a wider calibre with more bullet weight. A 570 gr .500 calibre at a slower speed is far better than a faster .460 500 gr. Again why the velocity?

A .577 or .600, even better!

I couldn't be bothered with a .460. GrandVenuer likes his and has actually used it and kept his.