So FWIW I found an apples to apples comparison.
Berger loads factory ammo for both with the 130 OTM hybrid.
Both at 2.80" COAL.
260 Rem, Lapua LRP brass, muzzle velocity 2847 fps
6.5 Creedmoor, Lapua LRP brass, muzzle velocity 2921 fps
Berger loads factory ammo for both with the 130 OTM hybrid.
Both at 2.80" COAL.
260 Rem, Lapua LRP brass, muzzle velocity 2847 fps
6.5 Creedmoor, Lapua LRP brass, muzzle velocity 2921 fps