Nationwide, good grief turkeys aint that special yet! LOL It 'used to be' in PA fall turkeys could be rifle hunted. Myself and many many others used .22LR or .22WMR. I know some wing nuts who used their deer rifles in turkey season. Spring season was shotgun only, but fall was whatever. I would hazard a guess that PA may still be that way as well as some other states, but I dont know which ones. I think CO here is all shotgun or archurry.
Only nationwide game laws I am aware of are migratory birds, those on endangered species act, and / or others that might fall into the Lacey Act( not sure if that controls harvest, just controls illegal movement etc.) .
Anyway good luck with the turks. They are alot of fun with shotgun or rifle.