I suspect you don't have a scope with 2.5" of eye relief on your 6.5 lb 30-06, either.
The "properly mounting a scope" excuse is as silly as the "I never feel recoil in the field" saying. I.e., you can't overcome physics.
Things happen. You might have to shoot from a cramped position, or severely uphill, or from your opposite shoulder where you're not comfortable. You get scoped. A comfortable amount of eye relief is cheap insurance to minimize those instances.
