My first 458 win mag had a narrow stock and was a poor fit, too light at 8 1/2 lbs. hammer your cheek bone on recoil.
Second weighed about 10lbs plus a lightish scope (1-5x20).
I had that re chambered to 458 Lott, advantage being you can still shoot win mag ammo, bit more case volume to put the bullets up to what the win mag was supposed to be but never achieved. 458 win mag had a horrible start with significant powder problems, they expanded in heat and could push the bullet out of the case. Not so good for a design intended to hunt big stuff in the hot sun. But that was corrected with better powders that came along.
Brake will help significantly, but not so favored by anyone standing around (not liked by guides at all). I have removable and use them for some practice, and put a protective thread cap for hunting. But the Lott doesn’t have one and doesn’t need it for me.
I don’t shoot any heavy kickers from a sit down rest, only standing so you can take the recoil much better.
Chart needs rifle weight to give a better idea, how it’s distributed counts too.My favorite rifle is a 375HH that is a bit muzzle heavy on purpose and shoots terrific and why it’s my favorite gun. Helps with muzzle rise and easy to shoot with a t shirt. Custom fit for drop and lop doesn’t hurt either.
500 gr Woodleigh solid from the 458 Lott will go through 6 feet of elephant skull, brain, vertebrae, and out the top of between the shoulders from 20 yds. Only recovered one solid from an insurance shot from between the shoulders animal laying down and in the paunch stopped by the undigested grass.