John,
Several years ago Brian Litz wrote an article about SCALING. The obvious conclusion is that .277 is just about perfect for LR performance.
Bring on the 1-9 twists.
Of course there is the fact that 270 Win ammo can be found everywhere big game is hunted. It is one of a handful of worldwide hunting cartridges.
Can't find 6.5-06 or 280 AI anywhere I go. Can find 7x57 / 275 RIGBY. Now that is a tempting choice.
Last edited by RinB; 11/07/16.
