Well someone has 48g of IMR-4831 for 120g bullet. IF your wanting to shoot the 100g bullet, you could start there and work up. You just gotta look around and compare data and use it to come up with a starting load. Thats all you need. Every rifle is different so a MAX load doesn't matter at this point. Let the rifle tell you when its at near MAX. Cratered primers, sticky bolt, etc... A cronograph is a great tool in making up your own reloads because you can check the velocity. This is how I make up new loads for something that hasn't been done before. Hope it helps.
