RE: Shot size for turkey ?
The patterning advice above is sound and don't forget the different manufacturers shoot different as well my 11-87 shoots the Rem 4x6 or 4's very well but win. or federal not worth a darn get some of your pals together and everyone buy a box of loads of different makers and shot sizes and have a patterning party that way the cost of shooting a variety of loads is more managable.