Semisane
Have you ever tried to load a .458 in a regular crush rib sabot in the Knight? I see reports of guys doing that.
The only time I tried that was in the White when BH - the orange sabots were not tight enough. In all the rest of my guns the Orange sabot is tight enough - really snug. I doubt I could get .452 sabot down the Knight, Remington, or the Omega with a .458 in it. And I really prefer shooting a solid if I can over a 'crush rib'