Not going to knock any middlebore from 338 to 375 as i like them all and have 6 of them myself but no 9.3's. Still they are all great.

I was wondering why hasnt something like a 375-06 taken off? Theres everything from 375 JDJ to the 378 WBY so bullets have been made that would work fine. It seems this would be a better (in theory) way to fly for consolidation of caliber instead of stepping in 9.3 cal. Just saying from a manufactures and ammo production side it would be easier or at least i would assume it would, or it seems practical. Is there something im missing like not enough shoulder or another technical issue? Just wondering.