What is your favorite 3" turkey load and favorite turkey choke?

I'm new to turkey hunting but want to give it a try this year. I'll be using a Benelli M4 with a 18" barrel but it takes interchangeable chokes. I know this isn't a turkey gun per se but I see quite a few turkey guns with shorter barrels so I feel that with the right choke I should be able to make it work, at least for this season until I can decide if turkey hunting is for me.
Thanks for any help guys

I use an Undertaker choke and Winchester Supreme Double X 6's. Shortest kill was just over 20yds longest was 42yds. They all went down just fine. My barrel is 21"

The Longbeard XR 3" 5 or 6 shoot well in my 870 with Primos Tight Wad choke tube.

Out of my 26" barrel 11-87 I use Winchester Long Beard XR #5 shot with a Carlson Long Beard XR. 660, and out of my 26" 870 I like using my Pure Gold .670.