[sheepherder]

Originally Posted by alvin

If it was ever put into production, the context is still missing -- to whom Mauser want to market this new caliber?...

Here's a partial quote from the thread I linked in the first post -

Following World War I, the â??Treaty of Versaillesâ?? placed various restrictions on the German arms industry regarding the manufacture of armaments including pistols (quantity, barrel length, caliber, etc)...After all of the above is considered, it is clear ...that the first testing of the C96 8.15mm pistol began after the end of World War I. This was an attempt to comply with the particular Treaty restriction that forbade the German arms industry from manufacturing pistols in any caliber that had been used during the War.