There is not much data for the 9.3 x 57.
So this is some of what I have found
https://castbulletassoc.org/blog/art...7-mauser-loads
https://loaddata.com/Cartridge/93x57...Husqvarna/1018
Handloader Magazine - February 1987 - Issue Number 125 … has an article on the 9.3 x 57
https://www.wolfeoutdoorsports.com/h...83-april-2013/
From Handloader #283