I shoot a Mossberg 500 with the xx full turkey choke. I wont buy another. Its an awesome choke. Its killed a bunch of turkeys. Others can say what they want, but I stuck with the facory choke from day one. But thats just me. I never needed to change. It shoots that good. Longest shot and kill for me was 47yards. I shoot Federals 3in 5 shot 2oz load...