I agree with sd. You don't need 3 shot to kill pheasanst from a 20. Make sure you have a Mod or IC choke and get some 6 shot shells that shoot goood patterns out of your 20. You will be fine out to 30 and MAYBE 40 yards, but keep your shots a little closer. I don't find I kill any more birds with a 12 then I do 20. And when birds start getting 40+ yards out I'm probably gonna miss with my 12's and my 20 guages...
