I have done .416 Taylor, .416 Rigby and .458 Lott, both from the bench and off hand.
Those were enough for me. I don't even own them anymore since my Cape Buffalo.
donsm70
10 or so years ago a buddy showed up here with a Ruger #1 in 458 Lott asking if I could help him zero it.
He had a new Leupold scope and 4 boxes of ammo, that Lott really boots from the bench Don.