HDKING - I think you are going to find it difficult to find any published recipes at all for your combination of components. I went back to a Lyman 2nd edition reloading book to find any loads with an RXP wad, and it was published in 1976, well before International Clays came out. It has been so long since I even saw any RXPs, I can't remember anything about loading them. I think your best bet would be to phone Hodgdon, and ask them if they have any data available. The number I have for product questions and availability is 913-362-9455.