Both VERY similar, shot both, perhaps a top loaded 140-160grain 6.5x55 has a little more recoil, but you would not know it. 25-06 is very mild, more bark than bite. 115-120s will kill elk dead, no doubt, need factory ammo, use the 25/06.
Met a guy at the Shot Show from Canada, shot one Moose not long ago, something like 450-500 yds, Rem factory ammo, likely in lungs, and it only went a mere 40 yards or so.
Me, I like 6.5's, and I reload, so I'd use the Swede. A 7/08 will also give you an option, tad more recoil, 140 quality bullets, factory or handload will do those Elk in.
Tikkas never seem to disappoint. Good choice.
