New Discoveries Alter Old Perceptions of Indiana Gunsmith Washington Hatfield Part II — The NMLRA
Making Rifle Barrels Machinery's Industrial Secrets.(with a specific rifle barrel machining project, engineering specs, and Twist Rate Chart) [Beautifully ReImaged Black and White Student Loose Leaf: Machinery Magazine: Amazon.com: Books
The Guns of the American Mountain Man | MeatEater Hunting
Polygonal rifling - Wikipedia
Rifling - Wikipedia
Back To Basics: Rifling | An Official Journal Of The NRA
Throwback Thursday: Old-Timey Barrel Manufacturing | NRA Family
Historic Firearms and Early Militaria by Cowan's Auctions - Issuu
Lands & Grooves – Rifled Barrel History With Colonel Smoothbore - Montana Hunting and Fishing Information
Rifling Types in Firearm Barrels: Everything You Ever Wanted - Shooting Times
The Ward-Burton Rifle: America's First Military Bolt-Action | An Official Journal Of The NRA
Barrel Boring - Engineering and Technology History Wiki
Firearms History, Technology & Development: Rifling: History
Gun Timeline | History Detectives | PBS
1759 Gunsmithing Forging the Barrel
A side-by-side shotgun/rifle combination with hammers, early 20th century, 28 and 6.5 mm cal., no. 139213. Rifle barrel is mounted in right shot barrel. Bright bores, shot bore with few pits inside,
Early American Flintlock Longrifles: Part II of our American Longrifle Series – Scavengeology
1912 WINCHESTER 1892 Lever Action .32-20 WCF RIFLE Octagonal Barrel C&R Classic Early 1900s Lever Action Repeater Made in 1912 | Ancestry Guns
Early Virginia Rifle – Contemporary Longrifle Association