I would start with Winchester supreme turkey loads...3" 6's. I have found they pattern well in any type of turkey choke.
Each gun/shell/choke combo will pattern differently.
You need to try a few and see what works.
Patterning gives you the maximum killing range for your gun as well.
I picked up a remington 870 for turkey/waterfowl and was going to grab the jelly head choke too but decided to see what else was out there



























