I read quite an article on the .458 2", wherein the fellow was a cook and sometimes guide in a hunting camp. His rifle was on a Remington 660 IIRC with the 20" bl.
He used both the Winch. 405 and Remington 405 gr. bullets nothing the were too soft for vels. Over 1,800fps when used on deer, especially the little Texas Whitetails.
That us why I went with the Barnes 400's as being a tougher bullet.
On game, I found the 350 Hornady the best for lighter loader in .458's on game(moose).