Thanks for the interest.
In case I did not answer to the earlier questions: this rifle is a true 9.3 mm, I can use bullets for the 9.3x72R. I have tried 193 grain jacketed bullets from RWS and DWM (both "historic") and new S&B, and the 193 copper-plated lead bullet from Haendler&Natermann, all shot well. Best powders for me are R901 and SR4759. But these bullets should not fit for any British .360.

Regards,
Fuhrmann