I am willing to bet the cartridge in question is 8x57R/360.I picked up a drilling in this caliber shortly before my back operation, which interfered with working up loads for it.From what I could see, before delaying the work, this cartridge is worthy of more respect than it usually gets.It seems to have been loaded "down" post war out of concern for how a lot of guns were affected in storage while being hidden from the allies.Based on some guns I've seen, the concern was valid.If a gun is checked out and is solid, there is no reason handloading can't be very productive.Many of these guns were made with barrels with groove diameter over .318, which was the bullet dia. of factory ammo.If the barrel is "slugged, it could very well be .321 or even larger. Mine is the larger diameter, so instead of .318 bullets, I can use 32Win.Spec.(.321)bullets.If a bullet will easily enter a fired/unsized case, it can be used.If .318 is really required, they can be easily made from the 32 bullets,and they were made for velocities similar to those that can be achieved with the 8x57R/360.Cases can be pretty easy also, although I don't reccomend using cut off 9.3x72R, not because they are not good, but because I wouldn't want to lose the 72mm case length.
Mike
