Since the 9,3x70 Expert Magnum and the 450/400 have the same casehead it would seem to be a great single shot cart/rig combo for 9,3x62 performance on a rimmed cart.

Or maybe a 450/400/9,3

Borrowed a couple pics from Lawndarts thread.





9,3x70 and 9,3x74 last two on right.