ORIGINAL: Handles
I read an article in the Wisconsin State Journal (maybe you can find it online) yesterday (Sunday) that the CEO of the Wild Turkey Federation has been using a twenty gauge exclusively for the past 7 years in multiple states. He is confident it the 20 to make 40 yd. kills on Turkeys and has done so on several occasions.
In the Hunter Specialities® Video "So You Want To Be A Turkey Hunter" Matt Morret Guides co-owner Carmen Forbes. She uses a 20Ga and puts on the best shot of the whole tape. An Iowa Eastern I think. Later in the video a guy using a 20GA is guided by Eddie Salter. It was either the man you referred to above (Kleck?) or Carmen's husband David. I'll try to dig it up & find out for sure.
Nine Days & A WakeUp & The Hammer Falls On Tommy Three Toes 