http://www.shotgunworld.com/bbs/viewtopic.php?f=13&t=282211
Here are some 2 3/4 recipes using American Select. Several are 7000 and below. They can be adapted to 2.5" by trimming and roll crimping:
http://www.alliantpowder.com/reloaders/powderlist.aspx?type=2&powderid=2&gauge=12