I have a remington 870 turkey gun with the super full turkey choke in it, and I have been shooting 3" 5 shotwinchester supremes. They seem to do pretty good. I was wondering what is the tightest choke tube you can get? Also would 3 1/2 shells give alot better pattern, and distance? Also the shot sizes 4 5 6 and so on what is the best for turkey, and what differs from each. I can shoot over 40 easy and kill a turkey with my setup, just wondering if you went to all the extremes of tightest choke, bigger shell, andbigger shot how far could you shoot?I would never shoot any further45 yards, Although I have once 49 yards killed it too. Thanks for any info