I haven't seen a wrong answer yet.
Okie John
That's the beauty in the good ol 30-06. Just about anything works well.
Burris FFII 3-9x40 with ballistic plex reticle:
Leupold 3.5-10x40:
Older Leupold 3.5-10x40:
Bausch and Lomb Elite 4200 2.5-10x40:
Nikon UCC 3-9x40:
Just a few examples, on a few different 30-06 rifles I have, or had...