Pre-war 375 magnum mausers, Westley Richards .318 mausers and Rigby 416 mausers of the same period don't seem to have quarter ribs. _Holland&Holland still produce new 375 bolt rifles without quarter ribs.
I didn't say they did. What I said is you look at a lot of wood/blue custom guns it is 375 and up where you see the quarter ribs.
Perhaps you can advise Weatherby that the 378 is a medium and should be in the same rifles as the 338/378 and the same for Winchester and the 375 and 338
Isn't good that we resolve things here:)
The type of rifle has ZERO to do with bore size. A medium bore can most certainly be in an Ecpress rifle
I got banned on another web site for a debate that happened on this site. That's a first