When I moved to the Memphis area in the 1980s, I hunted at many large deer camps in West Tennessee and North Mississippi. I hunted with a .308 Winchester, but I assumed that almost everyone else in camp would be using a .30-06.
I was really stunned to find that without fail, the .270 Winchester was the overwhelming favorite, closely followed by the 7mm Rem Mag. The third most popular was the .243.
These folks were very unsophisticated, and had never read a trajectory chart in their lives. But they all recited the same thing, "the .270 and 7 Mag shoot much much flatter than the .30-06." Since the overwhelming number of shots were at 300 yards or less, and many at 100 yards, I wanted to tell them that there wasn't really a hair's worth of difference in practical trajectory at these ranges, particularly since the deer were very very large. But, on the other hand, I didn't want to get beaten up. :-)
They had a very low opinion of the .308 Winchester, saying it was just a weak version of a .30-06. Yet, they all talked about the electrifying power of the .243 Winchester. Idiots.
Eventually, I saved up enough money to buy my on 45 acres of woods and fields in prime deer country, so I never had to hunt in a camp again.
Best