RE: Can the 30-06 *really* do everything a 308 can?
That's about like saying the size of the door has nothing to do with the size of the object that can pass through it.
Sure you can shoot cartridges that measure 3.6 inches long out of a short action receiver that measures 2.8 inches long but you will have to remove the bolt from the receiver every time in order to load one, effectively making it a single shot rather than a repeater.