here is an artical about the vom Hofe .375 cal!
I believe it appears from the artical that this caliber is also called .375 Westley Richards
http://www.jww.de/445,332/

yes and its similar to 375 dakota,i wonder if it similar too the 375 wby, correct me if am wrong, but they came out with fine things before .

Jens

I have the one prototype rifle Westley Richards made. With it I have 120 rounds of Wolfgang Romey ammo head stamped 375 Westley Richards. The gun made one trip to Africa while being developed where it was used on cape buffalo and plains game. I was told the 375 Dakota is a duplicate but have not yet compared them. It is not close to the 375 Weatherby since it is basically on a 404 case and the Weatherby is a blown out belted 375 case.