This Parker chamber blow-out was presumed to start at the screw hole and extractor guide channel
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=491058&page=5



And the point of a failure analysis is to avoid the same, which Savage must have missed. As of 2018, lawsuits related to the Savage 10ML II (designed for use with Smokeless Powder) with Crucible 416R Chromium Stainless Steel barrels were ongoing. It is alleged that catastrophic barrel failures have been the result of both a design flaw (screw hole) and a metallurgical flaw (manganese sulfide inclusions in the 416R)
https://cases.justia.com/federal/appellate-courts/ca6/12-1475/12-1475-2013-08-09.pdf?ts=1411028258

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