I shoot a Mossberg 500 12 Ga, 24" ported accu-choke barrel. Have killed turkeys out to 40 yds with standard full choke, 3" Win XX #6 Turkey Loads. For the heck of it I'm shooting an extra full choke this year. Patterned nice. I've had no issues with killing turkeys within 40 yds and don't expect any.