About 20 years ago I got to fire a Ruger #1 in 458 Win Mag. I shot it from the sitting position because I figured shooting such a rifle from a rest would be suicidal.
The first round surprised me with the recoil. The second really hurt.
Hurt so much, I have not forgotten it.
My 375 H&H M70 is a pop gun in comparison.
I don’t like heavy recoil and a 458 has lots of heavy recoil.
Shoot one first or your rifle may end up in the Pawn Shop after the first twenty rounds.
Like all those S&W 500 Mags that end up back at the gunstore. People think having a hand cannon is fun and then they shoot it.