#4 Buck or Heavy Turkey load. 20 or 12ga.
Set some silhouette targets starting at 10 feet and ending at 50 feet. Shoot COM and review the pellet pattern.. I think you will be convinced of its ability.
The energy dispersion on target is quite impressive also.
This is the load I use on coyotes when we call them in. I have yet had one run away wounded,where as with 00 buck I've watched them appear to step over and around the pellets matrix style.
Turkeys are always DRT.