Alx -
It was just by God's grace you were not hurt by this incident.
I think I have seen other posts on this Forum that the Chinese 9mm ammo is way too hot for these old guns.
I tend to agree with Ice that the gunsmith may have overheated the receiver and destroyed the temper when he installed the new barrel.
Is there anyone on the Forum who is more of an "expert" on this type of failure and can explain it to the rest of us? Perhaps Lugerdoc?
I know that over long periods of time, repeated impacts can cause steel to develop cracks. This is one of the reasons that aircraft frames and parts sometimes need to be periodically examined after having been soaked in a special dye and then X-rayed to see if there are any cracks. (At least this is how it used to be done.)
Mauser720 - Ron
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