I have tended to be sceptical of wildcats and have never seen any use for this and similar cartridges. I have shot the superb .338WM, since January, 1968, owned about a dozen of them, seven at present
I have shot the .340 and .378Weatherbys, a 9.3x64, owned seven .375H&H rifles, a Browning FN-LE .458WM and six 9.3x62s plus several .300 mags of different types.
Each to his/her own, but, I honestly find the .338WM and the 9.3x62 to be about "ideal" for BC hunting and they both "kick" a bit less than the longer rounds with no real loss in field performance. JMHO.