I’m wondering why you would want 13 to 1350 of 1&1/8 for sporting clays. Seems anything from 1165 to 1200 would be adequate. Sporting Clays Stations present two targets customarily the second is on report or you could call for a true pair. A full payload at 1350 fps imho is not going to leave you with a steady 2nd shot. You wouldn’t use that recipe for Doubles would you?