If you are shooting a Short Ten, many of the Sherman Bell loads used a buffer. Look for the number of grains followed by "PSB" in the wad nomenclature. It stands for polystyrene buffer.

http://parkerguns.org/forums/showthr...ht=spreadsheet

Charlie - If you can't find any GREX, let me know. I think I've got some I can spare. Won't be back home for about two weeks, so it may be a while

I believe the buffer keeps the shot in place so there's less deformation. That means less fliers and better patterns. John, your story has a moral - use a SxS, not a auto loader. Your Parker will work just fine for any hunting.