DWM vs. Mauser

[Sieger]

Originally posted by Dwight Gruber
noted a broken rear breechblock with what appeared to be crystallized metal (a Safe/Loaded commercial).
--Dwight

Can you explain the term "crystallized metal" as reported to you?

Perhaps the heat treatment wasn't correct on this Luger.

As discussed above, some of the early Springfield 1903s were overly heat treated and their receivers would "crystallize (blow into little pieces) upon firing.

Sieger