[Will M]

Originally Posted by mariusgmioc

https://www.metalsupermarkets.co.uk/...s-metal-aging/

https://scholar.google.co.uk/scholar...=1&oi=scholart

Seems metal aging is an intentional method to get desired results and does not enter into the realm of firearms barrels and other steels by the passage of time.
Does not seem to be applicable to the topic.