Long time hunter, total newbie when it comes to turkeys. Just bought 20 GA Rem 870 Exp. Now shopping for ammo and choke tube. The guy in this 2009/05/bourjaily-my-20-gauge-turkey-gun article recommends Federals Flitecontrol Heavyweight ammunition, holding a full 1 1/ 2 ounces of very dense tungsten-iron 6 shot in Federal's Flitecontrol wad and Hunters Specialties Undertaker choke tube. Any and all advice greatly appreciated by this newcomer to the turkey game.