Shooting upland game birds we always just use 2 3/4 cheapies mainly because I am terrible with a shotgun, its still fun though. Last year before going out I found one 3" magnum on the top shelf of the cabinet so I threw it in my pocket. About half way through the day I put it in the mag tube first with the reasoning that by the third shot the birds are usually a ways out there. It just so happened that after that we walked for about 45 minutes before flushing another flock, needless to say I had forgotten about the 3" shell. 2 3/4 bird shot has almost no kick and my gun was not very tight to my shoulder. That third trigger pull rocked my world!