I use the standard factory full choke that came with my 1300. It patterns ok with the loads I've tried out to around 35yds. Remington nitro loads, Fed. 3" turkey loads, Fed. flite control lead 4's and 6's, Win. 3" turkey loads and a couple others. Fed. flite control lead 6's put 90+ in a ten inch circle at 40 yds. I don't expect to do better than that without a specialty choke, but I'm not that worried about long distance capability.