According to the Lee Reloading Manual 30-06 shooting 180gr Jacketed Bullet they recommend 44.6 to 48.3 grains of RL15. Using the 180gr Winchester Fail Safe they recommend 44.9 to 47 grains of RL15. now about the double disk, they recommend starting out with 3.15cc to start so according to their published info you would use the 1.57 disk on top and bottom. Again this will be your min load and without doubl clutching the powder measure this is all you can do. Now if you could somehow triple disk the thrower you would be in business.
I would still recomend a scale to verify a few dropped charges just to be safe.
Paul Graham
Clean-um, Prep-um, Pack-um, Load-um, Bang-um
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