RE: Question on loads and shot size
I wouldn't have to think twice about this one. I used to hunt with the old "hump backs" all the time. They were deadly and came up like a charm. When I became a competetive shooter however Idecided to switch to a softer shooting gun due to the beating I was taking fromthe recoil operated A5.
I just called a tom in for a parapalegic who used a 2 3/4" shell loaded with 1 1/2 oz of #6 shot to harvest the bird. I also have taken turkey with 2 3/4" shells, no big deal. Like anything else, know the limits of your weapon and stay within those parameters and you will kill any bird that crosses that line.
I have a Benelli that patterns better at 40 yardswith 1 1/2 ounces of shot (many 2 3/4 turkey loads in this offering) than two ounces. A 2 3/4 inch shell is not the handicap that some folks think it is.
Furthermore a gun that fits you is far more important than 1/4-1/2 ounce of shot; even if you are making "slow and deliberate movements". Plus that 22" barrel with a sling will be a joy to carry in the woods versus the 28" unslung gun...
Good luck.