I agree, I think the .257/.270/7mm Wby Mag case would have been a good one for the .30 caliber as well. I don't mind the .300 Wby, as I use those cases to form for my .300 Ackley...Which is quite the beast. I, too, prefer the 7mm RemMag over the Wby Mag, because brass is cheaper, easier to find, no excessive freebore, and there's maybe a 50-75 fps real world difference between the 2. Which in my personal opinion, doesn't outweigh the excess expenses or the negatives that go along with it.
I also feel the .257 Wby Mag is a bit overbore, and would have been better had he chosen the 6.5mm over the .257. And yall know how big of a 1/4-bore fan I am... But I just think it was overkill for that small of a bore diameter.
Once again, these are all just personal opinions.
I agree there's so little difference between the 7mm Rem and 7mm Wby. The cost of a Mark V or a custom in the 7Wby is too excessive compared to a 7mmRem in a premium factory rifle.