I am ready to start some new loads for my 30-378 Weatherby with a 200 gr. LRX and Retumbo and a Fed 215m match primer. Since there is not any real load data for this Powder or bullet in 200 gr, I am going to start at the high end of a 300 ultra load I have for the same components. 92 gr. and work up. Do any of you see a red flag with this starting point? My current load is 180 gr tsx with 107.5 gr of retumbo .