As long as you don't get excited about shooting 3 1/2" shells, most autos that's designed for up to 3" max WILL function with 2 3/4" and 3". I've been shooting autos for over 35 years now and they run fine. The better autos will function reliably with everything from the lightest 2 3/4" field/target loads up to the heaviest 3" magnums without switching ANYTHING. Just because you don't care for autos don't mean they're junk. I've shot untold thousands of shells through autos without the 1st issue whatsoever.
Originally Posted by JonM
the problem your gonna run into with semi's is the ones that allow the use of magnum shells which you will want for goose hunting there is a lot of fiddling to get the gas/recoil system reset to function everytime you switch shell types.
if your concerned about recoil get a ported barrel and a reliable pump. just my opinion but i think semi-auto shotguns are more trouble than they are worth. you can get a MUCH better shotgun in a pump or over-under for the amount your gonna spend on a semi.