Wouldn't it be nice if you could be there when he opens them, and could shoot patterns as he removes a little at the time? That is the beauty of learning to do this work yourself, as ChuckH does. You can stop when you get it just right.
My .410s are choked all over the map. My Verona O/U is .004" bottom and .011" top. The Dickinson is .008" in both barrels, and the Yildiz is .011" right and .015" left. I have actually done better shooting on doves with the Yildiz than any of the others, in spite of the extremely tight chokes.
Good luck, SRH
