Thank's Matt Those look to be worth investigating. I have both those powders and a few 12SO wads. Could one drop down to 7/8 oz with a card filer in the cup for a good crimp? My 16 is a light back action hammer gun and some 1 oz loads do feel a bit heavy for the clays course.
That particular guide does not list any 7/8oz 12ga loads so I can't give you any published info on that. Check Alliant's website.
I also made my original response a little more clear about the fact the load data is for 12ga. I should have been clear about that to begin with. ----Matt