rifling
Sign in to savethumb|Rifling of a 105 mm Royal Ordnance L7 tank gun right|thumbnail|Conventional rifling of a 90 mm M75 cannon (production year 1891, [[Austria-Hungary)]] thumb|Rifling in a GAU-8 [[autocannon]]
Article
10 sectionsContents
- History
- Twist rate
- Design
- Manufacture
- Projectiles
- Recent developments
- Variable pitch rifling
- See also
- References
- External links
thumb|Rifling of a 105 mm Royal Ordnance L7 tank gun right|thumbnail|Conventional rifling of a 90 mm M75 cannon (production year 1891, [[Austria-Hungary)]] thumb|Rifling in a GAU-8 [[autocannon]]
Rifling is the term for helical grooves machined into the internal surface of a firearm's barrel for imparting a spin to the fired projectile to improve its aerodynamic stability and accuracy. It is also the term (as a verb) for creating such grooves. Firearms without rifling are called smoothbore.