Originally Posted by samson
Is there much difference between these 2 powders, as far as a 300 wm is concerned?
With H 4831sc you might not get the highest speeds, but you will get your best accuracy and temperature consistency. My 300 WM shot to exactly the same aiming point at temperatures from 75 *F to 0*F with H 4831sc and F210.
H 4831 is preferred by the bench rest crowd.
IMR 4831 may get you higher speeds but I don't know what else.
I guess it depends. are you looking for MOA or MOE ? (Min. of Elk )
They're both kind of a pain to load because of the large grain size. Ball powder like Magnum sure goes through the powder measure more accurately.