A credible source with vast field experience, Master Alaskan Guide Andy Runyan wrote an article in the 12th edition of
Handloader's Digest in which he describes the incredible stopping power of high speed .40+ calibers on Big Bear -
Big Bear stuffed-up with a .300WM then stomped with a high speed .40+
The 9.3-.375's are popular. Decent heavy game hunting rounds than lesser calibers in my estimation but as stoppers marginal at best? Lighter and faster 9.3-.375 bullets should impart more shock than heavier and slower 9.3-.375 bullets? But still lacking in cross-sectional area to impart devastating shock to be 1 shot Big Bear stoppers? Lacking in straight-through heavy bone smashing penetration capability?
No mention in the article about 9.3-.375's other than his guides gave up their .375's for high speed .40+ calibers and never looked back.
One shot DRT kills are the norm on heavy game with my high speed .40+ calibers properly loaded. Not a recommendation but I favor my high speed .40+ calibers for hunting in Bear territory. Even more so after the recent go-round with my .375 on Bull Moose.