Also known as the .256 Mannlicher I have 6 pages of how to form brass and loads.PM me your mailing address and I'll photo copy the pages for you.
C+H dies and Tooling makes and ships hundreds of dies from the States.
Your data is in the mail.
I have made up 6.5 from 303 British. I used my 6.5 carcano die to size the neck and push the shoulder back. The rim must be reduced in diameter. My 6.5 x53r will not take 303 brass if the case head measures more than 0.450,only problem I had. I am using 140 gr lead bullets with 18 grs 2400.