We hunt them with 20 gauge's with Improved Cylinder Hevi Shot Pheasant 20 gauge 2 3/4" 6's. I absolutely love the 6's and being able to use the 20 gauge is super fun.
Than are not Hero Shots if you use a high quality shell. The Hevishot Bismuth Upland is what our club has gone too. They are great for older shotguns and the range combined with the energy they hit with is a lethal combination. I prefer to use to my 12 gauge but often switch to my 20 gauge...