Failure analysis cannot be conducted over the Internet by viewing pictures. It takes a trained Metalurgist, the neccessary equipment to first view the fracture surfaces under high magnification, then cutting of test specimens to verify the metalurgical properties of the material along with calculations and assistnace from both the gun and ammunition manufactures.
Since the shooter had mixed factory and reloads in his pocket, the highest probability is faulty reload. without conducintg a full scale failure analysis and knowing exactly what type of ammunition was involved it is not even useful to speculate, 'Pet Theories included.-Dick
