The Galleries
- Robert E. Petersen Collection
- Ancient Firearms
- The Road to American Liberty
- Seeds of Greatness
- The Prospering New Republic
- A Nation Asunder
- The American West
- Innovation, Oddities and Competition
- Theodore Roosevelt, Elegant Arms
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond
- For the Fun of It
- Firearms Traditions for Today
- William B. Ruger Special Exhibits
- Freedom's Doorway
John Sherry Jr. Percussion Rifle
John Sherry was a gunsmith in Clarion County, Pennsylvania. He apprenticed at the Leman Rifle Shop, where his father was also employed, between 1814 and 1826, and he established his own shop in 1830. Sherry is credited with the invention of the segmental rifle groove, and he was one of the first to use gain twist rifling.