The recoil advantage goes to the 270, which often trumps a small advantage in ballistics.
If comparing apples to apples, one should compare the 170 berger and the 180 eld.
The difference in recoil is slight, IME, compared to the difference in external ballistics.
Choose any .277” bullet currently mass produced, and the result will be the same- the 7Mag increases the margin of error in ensuring POI is in the vitals.
