The bolt cracking in each case seemed to have occurred after the rifles arrived in America. I have never encountered cracked receivers in original Spanish rifles, but I have seen cracked bolts. You must have the headspace of your rifle checked by a competent gunsmith, and both the bolt and the receiver MT (magnetic particle) tested before you shoot it. The Spanish Model 1893 Mausers do not have the safety lug introduced in the Mauser Model 1898 rifle action. A matching number Spanish Model 1893 rifle or Model 1916 carbine should be safe to shoot after it is inspected, with several caveats:
