Straight from the Mauser website - M12 : see below and they REALLY like 30-06 so it gets a mention twice over 8x57 remains and they have dropped 7x57 for 7x64 (not really a loss)
Calibre:
.243 Win., .270 Win., .308 Win., .30-06, .30-06, 7 mm Rem. Mag., .300 Win. Mag., 6,5x55SE, 7x64, 8x57IS...