Very cute you 270 guys. You have all of the rationalizations and Clinton-esque talking points down pat.
The 270 operates at higher pressures.
Maybe according to SAAMI, but there is no physical reason why it should, and it doesn't in my rifles.
And when comparing equal barrel lengths
Why would I want to saddle a large case with a barrel length appropriate for a smaller one?
So the 7RM is shooting a heavier bullet for your comparison, right?
Aww man, now yer' digging a deeper hole--a 280 is the wanna-be 270.....sheesh
With a bit more case capacity, better bullet selection, and a slightly larger bore, it is truly the 270 Improved.
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