Yeah bet it's Fed HWT too. Did a little googling after I posted.
Will indeed does use a 20 ga. Wonder when he made the change from a 12 to a 20?
http://www.nighthawkpublications.com.../journal_1.htm
John's Journal...
Tips and Tales from Four of the Country's Best Turkey Hunters
Day 1: Will Primos Answers the Questions Most Turkey Hunters Want to Know About Taking Turkeys
Question: Give me one more question you're often asked in seminars.
Primos: I'm always asked what type of shotgun to use to hunt turkeys. There are a number of quality turkey shotguns on the market today. You can shoot almost any type of gun you want and take turkeys. I shoot a 20 gauge, 3-inch magnum with a Primos Jelly Head Choke Tube. I can take turkeys at 40 yards all day with that gun. It's light, easy to maneuver and doesn't jar the fillings out of my teeth when I shoot it. I enjoy hunting with a 20 gauge.