Just looked at my reloading notes. My average measured water capacity to the neck-shoulder junction for Win 264 WM cases is 84.1 grains. FWIW practically however, max charges I can get into a 264WM case with powders like H50BMG is 75 grains, with a long drop tube, loading 140 grain bullets to OAL 3.34".

Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it Almighty God! I know not what course others may take, but as for me, give me liberty of give me death! P. Henry

Deus vult!

Rhodesians all now