Fuhrmann,

Might I impose on you to send me the articles on the 9.3x57R-360?

Incidentally, "The Handloader's Manual of Cartridge Conversions" (THMCC) has a page on the 9.3x57R and under other names lists 9.3x57R/360 and .360 Nitro Express. It lists the information source as Cartridges of the World, 4th edition and my 10th edition does not have any info on the cartridge. The loading data in THMCC is for a 190 gr lead bullet at 2000fps.

The cartridge specs in THMCC are for a case 2.245" long and head diameter of .428 and the base case for forming is stated as .45-70 Gov't. This case can't be right as it is simple too large for a nearly straight case that ends in a .365 bullet diameter. The 9.3x72R is probable as a case. This would comport rather nicely to the .360 Nitro Express case dimensions. Anyway, I can imagine a 200 grain 20:1 alloy paper jacketed bullet at 2000fps as the cat's meow for Sitka black tails.

If I buy the gun I'm looking at I can then tell you more about the chamber dimensions of one gun.
Dennis