Kuduae:
So from 1910 to 1912 did the proofhouses swap all their plug gauges from English units to metric? If so, where did they source them; someone like Loewe? I think I've seen the 9.3X62mm Mauser also listed as a 0.366 Mauser so were there other variations like in the 9.3X72R or were there different size bullets for say the Miller & Greiss 9.3X63 with the Greiss banded bullet? Or was it that the cartridge wasn't normalized until circa 1912?

Kind Regards,

Raimey
rse