Need bullet recommendations for 458 win mag

[Rumup]

I think you are on the right path. I saw my father shoot his muzzle loader straigh through a palmetto branch and kill the pig behind it. .260 probably not. That being said I wouldn't want to try it on a nice buck. As far as .458 bullets go I've yet to find one that does better than the cutting edge raptors. A bit pricey but they work exactly how advertised.

I'll second the cutting-edge I've shot many deer with 260 grain Maximus out of my 458 Lott by far the best bullet I've tried