Barrel-Making: How Ruger Crafts Hammer-Forged Barrels « Daily Bulletin
The More You Know: Cold Hammer Forging (CHF) -The Firearm Blog
Video: A Look at Ruger's Cold Hammer Forge
Heckler & Koch on Twitter: "Cold hammer forged barrel press currently being set up at our new factory in Columbus Georgia! https://t.co/kPW4cUzX58" / Twitter