Look here
http://www.shotgunworld.com/bbs/viewtopic.php?f=13&t=421067

And here
http://www.hodgdonreloading.com/data/shotgun

And here
http://www.alliantpowder.com/reloaders/RecipeList.aspx?gauge=20&gtypeid=3

I use a AA hull, Win 209 primer, Claybuster 3/4oz wad and 15 grains of 20/28 powder. Works fabulous and very pleasant to shoot. An excellent load with higher pressure is 14 grains of Green Dot. If you want to use a straight wall hull the SG-20L or M wads work great. Let us know what you do.
Regards,
Jeff

Last edited by JNW; 05/08/18 09:56 AM.

"We are men of action. Lies do not become us."
Wesley