Mossberg Autoloader: Selection help request

[BlondeBear63]

...the recoil of many 3 1/2" shells match or beat recoil from 458 WM. I'm not going to deal with elephant rifle recoil to kill a 10 lb bird...

That's the quote of the day.

I read somewhere high brass 2 3/4" 12 gauge heavy game loads produce 20 lbs. of felt recoil whereas full tilt 3 1/2" 12 gauge magnum loads can produce 70 lbs of felt recoil as well as detached retinas.