I would have to check ,y reloading manuals on that one. 7.62 nato is 308 winchester. 30-06 springfield is the standard US army round from ww2 up until the introduction of the m16, which uses the now more common 5.56 nato, or 223 in the civilian world.
If you were serving in the US a long time ago maybe, but if in Nato it would have been the 308. Same calibre but a bigger cartridge on the 06. Good for bear and moose, not so good for trout.