Try around 65 grains of Big Game--working up from below, of course. This load has worked very well in several 9.3x62's that I know of. Muzzle velocity is usually in the 2400-2500 fps range, depending on the throat and barrel length, and accuracy excellent.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck