RE: Do they make .410 turkey shells?
Back when I used a .410 (geez, it's been over a decade...) I had some 3" heavy game loads in #4. I was deadly on paper out to 20 yards, but never got a chance at a bird. I doubt there's a turkey-specific load, but NY/Al's got the right idea.
Rifle: Marlin 336 .30-30
Shotgun1: Remington 870 20 gauge
Shotgun2: Mossberg 600AT 12 gauge
Muzzleloader: Winchester x-150 .50 cal