Dennis, although you got me thinking along the right track with the "Ruger boys" idea, it wasn't til I had my first cup of coffee that I finally got it right.
How about pitching the "Ruger boys" the idea of a limited run (perhaps through Lipsey's?) of a 'Bill Ruger Commemorative' in 404 Ruger? It would be the perfect combination of a Classical bore with the new technology the 375 Ruger case reflects. They should still have the tooling for the barrels from their prior brush with the 404 bore
The 404 BR Commemorative would be perfect in the African, but I'd settle for a N0. 1 - at least we'd have the cases headstamped correctly, after all
!