Just got a can of IMR 4064 to try out w/ my .308 (Savage 10FP LE2, 1 in 10" twist) The IMR website lists: Starting at 41.5 gr. and max out at 45.6 gr /ubbthreads/images/graemlins/shocked.gif. 45.6 sounds pretty hot! That's a pretty big difference from starting to max. I figure I will start with three loads 43.5 gr. , 44.0 gr. and 44.5 gr. Any recommendations. Thanks again, Jim M.