Raimey has a great background in metallurgy, and also the research tenacity of a bulldog. He's working on an article about Beretta's history regarding the barrels on their side by side guns; looking back over the past 100 years or so.
His comments above really go to the sourcing of steel, but we're also very interested in better understanding how much finish processing Baretta actually did in Gardone in order to mount completed tubes to their guns.
Clues to that question could be found in the kinds of process machinery Beretta had or didn't have on-site...or maybe old catalog entries from the 1940's. If you have any info to share, especially about the period just before and after WWII, please post here or email me at jimbode@nctv.com
thanks