As a Pennsylvanian and former college wrestler this tournament was unreal to watch. The Joesph- IMar match was obviously my favorite also. IMar will hopefully loose some of his arrogance too since he was humbled by a redshirt freshman. The whole tournament was unbelievable as far as the talent...
I will say if you want to keep it a RUM do like mtmuley says and go to the 300 or 338. I have seen some pretty impressive groups out of 300 RUMs and think they are inherently more accurate than the 7mm RUM at least that is what we have seen.
I'm in the process of having a 28 nosler built. I believe to get the most benefit out of the 28 nosler you need to have it chambered using a custom reamer with a longer throat to be able to utilize as much of the case as possible with the heavy for caliber bullets. I am planning on using the 195...
Good looking rifle!
I have thought of building something similar before and still might. If I were to shoot in matches like you and your boys it would definitely be on the short list.