Originally Posted by Robert_White

How can a "soup" of molten metal poured into a mold be strong enough to become a rifle action that must endure such high pressures?

Obviously the Ruger action holds up, but not understanding how it is done causes me to not have full confidence.

Can anybody put it in laymen's terms?

And to add to the confusion; how can/does Ruger make an investment casting stainless all that strong?



The format is a little hard to follow but there is some good information in this article to answer your question.

After heat treating according to these guys 410 stainless can have a yield strength of 140,000 PSI.

https://web.archive.org/web/20120219095722/http://www.precisionmetalsmiths.com/PMIalloyEngineeringGuide.pdf