I've used the .358 Winchester a bunch. Kills everything very handily and thumps the crap out of them.
Dunno how many mule der I've killed with the .358, but it's been a passel and, of course, lots of elk. They just fall down most sincerely dead.
Don't go crazy with the bullet weight, 200-grainers will normally fully-penetrate an elk, so anything heavier simply kicks more and compromises your trajectory.
I wrote the lead-in to the .358 Winchester load data section for one of the Nosler Handloading Guides ... I've forgotten which one, but it describes a kill I made with my .358 one day.
(I do beliee that I forgot to mention the other three dead big bucks I found laying there with the two I wrote about
Funny about that)
The .358 Winchester? A Frackin' killer
Steve
