If you can' t kill an elk with a .280, you are not going to kill them with a 7 mag
Using that logic, a .270 Win will do what a .280 Rem will do.
And a .25-06 will do what a .270 Win will do.
And so on, until we're into the smallest .22 centerfires.
And then we're into the .17s.
And all are equal to the 7mm RM due to the transitive nature of the argument. (If A=B and B=C, then A=C)
The facts are my 7mm RM carries 1500fpe and 2000fps about 140yds further than my .280 Rem loads.
In real life, marginal differences often make large differences in outcomes. Ask any chemist or physicist or mathematician. They don't call it 'escape velocity' or 'critical mass' for no reason.
