I hate to say this but I went back and looked at WTS's reference to AC Jones book in the patterns thread when I got home from my business trip and while AC did determine larger gauges did better, he mostly held that this was due to average payload size being higher in them.
He specifically looked at overbore barrels and its effect and found them negligible.
Lastly he looked at shotstringing which I believed had a great impact remembering the pictures in Burrards and Bristers books, but in reality the speed of the load and the angle of the target makes shot stringing minorly, not majorly significant.
In that respect WTS was right and I was wrong. I even dug out copies of Lowery's old program and got Jones' and saw it laid out graphically. I have not had the time to put together a posting showing it ngraphically, but hopeto by the end of the summer
Last edited by old colonel; 06/06/16 06:37 AM.