Turkey Choke for buckshot?

In this video I test the theory I've heard all my life, "with buckshot, you cant use a tight choke or your pellets will deform and scatter". Federal 3" 00 buckshot- Benelli SBE1/Nova- Chokes used are Primo's Tightwad extra full turkey ($20 on sale) and Briley Light Modified duck choke (pretty expensive from what I remember).