Good luck with that . . . . cause one day it won't.
Then you'll be wishin you brought the right tool for the job.
When everything else is equal, there ain't enough diff ballistically between the 270 and 7RM. Even less when considering its effectiveness on deer and elk....
I've killed more elk than most, and I know what a 243 will do and won't do--when anything else in needed, I'll just grab my 7RM masquerading as a 270..
Casey