Before Lapua started producing drawn and properly headstamped cases in 9 mm FAR, the first trials took place using lathe turned cases. These cases were made and loaded by LCM for experimental use only. Tanfoglio and Mr. Cudazzo developed a 10 mm FAR cartridge too. Although some pistols in this caliber had been cataloged in Italy, no one went beyond the experimental stage and drawn brass in 10 mm was never made.
For more info about the 9 mm FAR go here:
These samples come from LCM and are NUPE cases and have no headstamps. The gunsmith Marco Rigido also experimented with these cartridges but he made the cases on his own. I don’t know if those cases are identical or differ slightly form the ones used by Tanfoglio.
The 9 mm FAR experimental case is identical to the commercial version by Lapua, except for the rim that has a beveled shape.
Here the dimensions of the 10 mm FAR case:
Outside mouth diam: 10.05 mm - .396"
Inside mouth diam : 9.60 mm - .378"
Head diam : 10.74 mm - .423"
Rim diam : 10.67 mm - .420"
Case lenght : 24.10 mm - .945"
In the picture, from left: 9 mm FAR by Lapua ( reload) , 9 mm FAR experimental , 10 mm FAR experimental
The beveled rims of the two experimental cases:
The 10 mm FAR