I may have missed it, but someone should warn you not to use .366 diameter bullets in a 9.3X72R. I have owned several of them, and they usually slug .364 or less. Also, most bullets made for the 9.3X74R, 9.3X62 and 9.3X64 are heavier, the most common being 286 grain. The standard bullet for the 9.3X72R is under 200 grains, most commonly 196 grain, if memory serves me correctly. The heavier bullets are also tougher and are therefore harder on your barrel. Also, most of my 9.3X72R drillings were proofed for lead bullets only. I have some leftover RWS factory ammo and these bullets have a thin jacket over a lead core with a flat nose. Your best bet on an old drilling is to use cast lead bullets. Slug you bore first and make the bullets .001 to .002 larger.
