I like this post!
'Bug Out', to me, implies sxxx has hit the fan one way or another. Whatever the way would probably not make a difference to me.
It interesting to see the variation in firearms and calibers.
I try to think logically and with some common sense.
My favorite guns would probably not be considered. I would take whatever has the most availability of ammunition.
It would be a 9mm & 22lr. There will be plenty of ammo for both of these calibers.
Other calibers would be iffy finding should additional ammo is needed.
I probably would not take a rifle, too much to handle if one is on foot and on the lookout for possible negative problems. If the problem is at a long distance, let it be only deal with immediate life threatening issues. PS: If I were to take a rifle it would be 223 rem (ammo availability)
Before you bring up what about a sniper:
1 - They will probably take you out with first shot so it does not matter.
2 - If not they are a poor shooter so run, hide whatever it takes to put distance between you and them.
Now you know how hunting pray feels.