G'Day Fella's,

McKinney, my only experience with a .378 W/by, was visual ........... and I was content with that fact.
A bloke I know (Ray G), had a Mk V at the range one day, and just watching him shoot it (whilst he was standing), was painful.
Lots of recoil (but bloody impressive ballistics as well)!
Recoil was probably similar to a .300 W/By Mag ...... just more of the same.
What I mean by that is, recoil was Fast and Hard.

Hope that helps, and doesn't put you off the purchase.

Regards
Homer