There is a thing on FR called caliber creep. What ever cartridge you like the next poster will up it as necessary.
I've hit Mule Deer at 250 yards in the North Dakota Badlands. A .270 hole in one side of the chest, mangled up insides, and a fist size hole blown out the other side.
Your money would be better spent on quality glass.
Thanks for the insight. I do love my .270.