Over the years it has amazed me how far a shotgun will kill a turkey.. I shot several with trap loads of # 7 1/2 out of an improved cylinder choke... One I remember was 44 yards away..
Last fall I shot my gobbler with a mod. choke in my old 870 12 and WW # 5 pheasant loads.. If I go out for turkey and take a shotgun, it is usually a 12ga. with a full choke.. Last spring I used my model 12 heavy duck and 3"5's..
