Raimey,
No, I'm saying the express loading only increases the pressure a couple thousand psi and puts the cartridge in the 35 Rem. class, not 358Enterkin class. Chamber dimensions of my two "Express" proofed 9.3x72R rifles are different, but not because of "Express" loading; one was proofed with a 13-gram bullet and the other with a 12-gram bullet. Both will chamber the more or less standard 193 grain bullet, but only the one for the 13-gram bullet will chamber handloads with my favorite bullet, the H&G 512c 208 grain blunt nose bullet. The other one uses a 200 grain (about)bullet from a shortened Lyman# 366406 mold.
Mike
