I've just found out about this board, and would appreciate some member comments. I have recently bought a Mauser with the markings - Crown over Fabrica De Armas, over OVIEDO, over 1904. It has a 17" barrel which is .284 bore, and I'm assuming this is a 7 x 57. This cartridge chambers easily, but I've not test-fired it yet. Any comments on caliber(s) of this model, other history, anything at all ?