I think many of the replies missed the mark completely here. Did y'all not see him say "I didn't see any birds"? More important than what gun or call you use is knowing your prey. Assuming the OP does live within the habitat of the turkey; there are 4 things a turkey needs: roost; food; water; and mating ground. Scout for the roost and you should be able to intercept a gobbler on the way to any of the following areas. Knowledge is a far more powerful tool than any shotgun, call, camo or blind when it comes to hunt (any species).

There are many books out of hunting turkey, and turkey biology. Once you know how to find your prey then you can focus on methods of take.