Just compared the three on federalammo.com and with Nosler Partionbullets 140gr 7mm-08,130gr .270, 165gr .30-.06

Zeroed at 200 yards the 7-08 is -8inch @300yards, .270 is -6.5@300yards, .30-.06 is -7.9inch@300 yards.Wind drift 10mph cross wind was relative between the three also.So yes you are really splitting hairs, but it's always fun to have different rounds/barrels !!