Depends on the actual capacity of the case. At 57,000 psi, there's some room for experimentation.

I don't have a list on the 9.3x53R's currently loaded pressure.

here's an add.

Mosin Nagant M91/30 with Laminated stock. Each rifle comes with bayonet, sling, ammo pouch, cleaning kit and oiler. Overall very good to excellent condition, arsenal refinished. $169.00

$225.00 for the ones listed as Ex-sniper rifles. They do not say if drilled and tapped for side mounts.