I only have a .30-06, and I feel if you can only have one then it is the one to have. 110, 135, and 150 grain are all sufficient for various deer.
I am looking at a .243 for my next hunting rifle. Lever Action, open sights, 150 yards or less, quick action rifle for shooting those targets that like to move.
If there isn't a photo then it never happened.
Gun Log SPC iOS Range Book
If you find your back is up against a wall, maybe you have been backing up for too long.