30.06 vs. 308
With factory ammunition under 180 gr. there is no real odds,and a .308 would likely be the best bet.
Having said that my personal preference is the 30-06. The reason the .308 will run with the 30-06 is the max.pressure is higher for the .308. This was done due to older rifles kicking around chambered for 30-06.
In modern rifles (like my Mod.70) equivalent pressures are quite safe,I have one standard load for my 06 with a 150 gr. bullet that chronos at slightly over 3000 fps. This is a very accurate load,and I use it for hunting and target work.
I have other rifles for other applications,but this rifle and load are high on my list of favorites.
When we remember we are all mad, the mysteries disappear and life stands explained.