A Spanish made 10 gauge 3 1/2 inch Magnum double barrel can bring tears to my eyes when firing magnum loads of 00 Buckshot. Thats the bad side, the good side is that the first shot clears all the brush, saplings, briars, small trees, hills, small mountains, etc. out of the way for the second shot at the deer!
I really think its a lot worse than the 460 Wby. Of course I only fired the 460 Wby 3 times in my life and it damn near turned me around but it was more like a push than the WHAP that the 10 gauge delivers.
I have a Rem 700 7MM Mag that I can shoot all day long with factory ammo, or some Nosler Partition 150 grain handloads, and I swear it kicks no more than a light loaded 06. But have some 140 grain Nosler ballistic tips that are loaded to a LOWER velocity than the 150's and they beat the hell out of me.....go figure!