I have the Classic Big 5 in 500/416 with a set of 9.3x74R barrels I hade made for it.

The 9.3 barrels do like a variety of factory ammo, it's regulated for the 286 Norma Oryx factory loads.

I'm working a load up using the 286 North Fork bullets that I'll also use in my Hubertus single shot. I have high hopes for this bullet.

I like my rifle a lot and have used it here inthe USA and in Africa with great sucess. I love he various 9.3 caliber rounds. In a double, they really shine.