Thanks for the feedback. I am currently loading a 1oz load in the WinAA hulls, so an insert might force me down to 7/8 oz. Not the end of the world but I am trying to see if there are any other options before going that route. I may try loading some of the BPI Brush Wads and send them out for testing. If I do, I post the results here.
I did some comparison patterning of various spreader loads a while back, and found the Polywad shells threw the most open patterns but I found the pattern distribution were not as effective as some other spreader shells. It would be interesting to see if the results differed using a Polywad insert in another load.
http://www.doublegunshop.com/forums/ubbt...8662#Post338662
