How long is the barrel? I hunt with an old Rem 1100 with a 28" bbl and I wish it was shorter sometimes. If you have a RemChoke bbl you might want to invest in an after-market turkey choke. Shoot you existing choke/chokes first with different loads to see how they pattern, before you spend money on the after-market chokes.

I'm sure there are people in the forum with more experience than me with turkey hunting that can give you more info. You will get some illustrations from these people as to what they think a good pattern for your shotgun is.

Good luck!