drfatguy a 300 ultra will not do anything more than a 300wby. in factory rounds the weatherby actually out performs the ultra and the people i've seen at the range with reloads aren't getting any better than i do with my 300 wby.
I have heard you say alot of things that make me shake my head, but this one takes the cake. As a shooter of all mentioned except the 30-378.