You can't necessarily look at what those guys in still target competions are doing as the ideal example of what you should carry on a turkey hunt. In their game if a 30 inch barrel improves their patterns by an average of 2% then it's well worth using. On a turkey hunt however the inconvieniance of that longer, heavier barrel just isn't worth it for such a modest improvement. Besides most of the patterns those guys are getting in still target competions are far denser than what is necessary to simply kill a turkey at 40 yards.