I recently had a Savage long range hunter rebarreled to a 1-8 twist. 260 Remington. I bought some Sierra .264 diameter 130gr. tipped Gamechanger bullets. I will be using ADG brass and federal 210M primers. My question, I have both Alliant Reloder 26 and Winchester Staball but can't find any load information for either powder. I called the Sierra technician today and he had nothing for the Reloder 26 and as far as he knew they haven't even tried Staball. If I could just find a max load on either or even better, both, I would at least have a stopping point. ADG advises 10% below max load anyway and I don't usually load Max anyway. Any information from you veterans would be greatly appreciated.