I use my Stoeger M2000 for rabbits and squirrels and anything else that walks or flies. The semi auto is great for fast shots and the 12 gauge is more versatile. It's not too heavy either. I use a skeet choke for everything and use almost exclusively number 6 shot. It seems to work on everything.
I love that gun! It has jammed a few times when I didn't want it to but it is super reliable the other 99% of the time. I can shoot about as fast as rabbits can run or pheasants can fly.I put in a plug so I didn't shoot as much