Finegunmaker,
I used the 375 Chatfield/Taylor for a time, which is what your talking about and it will duplicate the 375 H&H, but I see absolutly no advantage to owning a wildcat over a standard caliber..375 brass is easily available, cheap, and has a proper head stamp which may be needed if you travel out of the USA. Then what if you get seperated from your ammo or run out in some far corner of the earth, you can always find a box of 375s....