I ran some numbers a while back, comparing 30-06 to 6.5-06. The Swede will not be quite as good as the this, but it is a decent comparison.
.30-06:
.308 220gr SMK @ 2500 FPS drifts 17.1" @ 500 yards in a 10 MPH full value wind.
.308 200gr SMK @ 2600 FPS drifts 18.2" @ 500 yards in a 10 MPH full value wind.
.308 210gr Berger VLD @ 2500 FPS drifts 16.8" @ 500 yards in a 10 MPH full value wind.
6.5-06 or 6.5-284:
.264 140gr A-MAX @ 2950 drifts 15.6" @ 500 yards in a 10 MPH full value wind.
.264 142gr SMK @ 2950 drifts 14.6" @ 500 yards in a 10 MPH full value wind.
.264 139gr Scenar @ 2950 drifts 14.7" @ 500 yards in a 10 MPH full value wind.
.264 140gr Berger VLD @ 2950 drifts 13.4" @ 500 yards in a 10 MPH full value wind.
Either is capable of taking any North American game with the right bullet, although I would want something bigger for Grizzly Bears.
.30-06:
.308 220gr SMK @ 2500 FPS drifts 17.1" @ 500 yards in a 10 MPH full value wind.
.308 200gr SMK @ 2600 FPS drifts 18.2" @ 500 yards in a 10 MPH full value wind.
.308 210gr Berger VLD @ 2500 FPS drifts 16.8" @ 500 yards in a 10 MPH full value wind.
6.5-06 or 6.5-284:
.264 140gr A-MAX @ 2950 drifts 15.6" @ 500 yards in a 10 MPH full value wind.
.264 142gr SMK @ 2950 drifts 14.6" @ 500 yards in a 10 MPH full value wind.
.264 139gr Scenar @ 2950 drifts 14.7" @ 500 yards in a 10 MPH full value wind.
.264 140gr Berger VLD @ 2950 drifts 13.4" @ 500 yards in a 10 MPH full value wind.
Either is capable of taking any North American game with the right bullet, although I would want something bigger for Grizzly Bears.