My thoughts:

1.) What does your wife say about this?

2.) A bolt gun in 7mm-08 Remington could be carried all day and not have much recoil.

3.) Guns get heavier and heavier the longer you carry them. It's not just a matter of being able to carry them, it's a matter of staying fresh. If you're not, it's when you start getting sloppy and the game busts you.