I've followed the thread with interest but haven't heard anything that would dissuade me from the original thought process. I picked up my new Kimber Caprivi 416 RM yesterday (thanks
@Philip Glass) and it's already disassembled. The stock is headed to Edwards to have their excellent recoil reducers installed and the bolt is off to Custom Jewel Shop for a full treatment. When the stock and bolt are back and the rifle is reassembled it will wear the VX6 1-6x24 as originally planned. My custom CZ 375 (cerakote, three position safety, Timney trigger, jeweled bolt, Aramid stock) will wear the Trijicon 2.5-12.5x42. The bolt throw on the CZ is such that I can use the same mounts with the 42mm Trijicon as I originally used with the VX6.
I think I've decided to stick with 300 grain bullets in the 375 and 400 grainers in the 416. I think it's unlikely I'll take both rifle on the same trip, and if I was only going to take one for a mixed bag up to and including buffalo I'd select the 375. The 416 will be used in a two gun battery.