I think it all depends on your skill level. I will use a 28 on quail but nothing larger. One of my friends will use a 28 on chuckers or even larger birds with great sucess. The point being he is a much better shot than I am. If you find your percentage of clean kills remains high, by all means use a 28. They are fun and easy to carry. If it does not work for use then return to the 20 or better. Respect the game. A 28 can still be a blast on clays.