I’d hate to have to try to live on the differences between the 6.5X55, .260Rem, or even the hated 6.5 Creedmoor, Or the 7-08, & 7X57, for that matter.
Ballistics so similar in the two groups that it’s almost flip a coin.
now if you want a 6.5X55 or 7X57 because they have a long well documented...