I also have a Win. 1300 and use an Undertaker Choke tube. It works great. However, the pattern starts getting scetchy at about 40-50 yards. I have never missed a turkey at 50 yards though. I also use Remington Hevi-shot #6. If you shoot towards the body, you'll probabably just make the turkey angry as their feathers are very strong. You'll want to aim for the head and neck area. Good luck this year, you'll become addicted quickly!!