I never can find any choke company that specifies a choke for Thompson Center. What is the choke thread pattern Ishouldbe looking for? Remington, Winchester, Benelli, etc...?Also, is the TC Encore 12 gauge the same choke pattern as th TC Encore 12 gauge muzzle loading shotgun? I have the 12 gauge muzzle loading turkey gun and was wondering what chokes fit the gun. I have a non ported choke that came with it and was hoping someone had a suggestion on what choke I should try to get a better pattern. Mainly would like to know what chokes I can buy.