I'm with these guys. I have a Carlson ported turkey choke. I'd also recommend turkey loads. Don't necessarily need to be the high end, expensive stuff (e.g. Hevi Shot, Nitro, Xtended, etc.) but they obviously work well. I killed one bird this year with Rem Magnum 2 3/4" #4s at 49 yards, and two others with Rem 3" Duplex (4X6). Here's the 2 3/4" Magnum pattern at ~40 yards with this set-up.