I bought a Whitworth 375 H&H 15 years ago, and it accounted for hippo, croc, leopard, kudu, klippspringer and jackal on a 2024 safari in the Zambezi valley of Zimbabwe. It is accurate enough - 1 MOA or less. It is wearing at least the 2nd stock.
The original description:
" For Sale: Interarms Mark X in .375 H&H Magnum. 24" barrel with Christy's Barrel Band front
sight, gold bead. Barreled action and bottom metal are matte finished. Walnut stock is brand
new Rem 798 from Stocky's with full length glass bedding and a Brockmans Magnum Sling
Stud. I have the original tupperware synthetic that will ship with the rifle as well. Bold
adjustable trigger. Williams FP aperture sight. Very nice working .375 mauser action with CRF. "
In the event, I removed the aperture sight and put on a Zeiss Duraly 2x8 scope. I guess it is just a Whitworth, not a Whitworth Safari Express as pictured above, since it doesn't have a barrel band sling stud. I presume that is why the previous owner added the Brockmans sling stud.
The first three pictures below are from the original ad; the last photo shows it in Zimbabwe, next to a leopard blind.