mike, how much 3031?? I have a bunch of it and need to load some stuff for my .375..
65 grains for 300s and 68 grains 270s. The are about top. 68 and 71 with 4064. Actually old Winchester 270 grain Power Point and 300 grain Silvertips had non canistered 4064 at those loads.
In both cases 270 grainers will be around 2650 f/s and 300 grainers at 2450 f/s
