riflings
Helical bore channels
Riflings is the plural of rifling, the spiral grooves cut into a gun barrel's interior.
These grooves impart spin to a bullet, stabilizing its flight and improving accuracy: Forensic experts matched the bullet's markings to the riflings of the suspect's weapon.
Each firearm leaves distinctive rifling patterns, making them useful in ballistics analysis.
Comes to ground
- boreTiresome individual or drill
- barrelHooped cylindrical vessel
- channelsPaths for transmission
- striationsParallel linear markings
cuts · impressions · engravings · marks · indentations · patterns · depth · spacing
Spiraling three-dimensional curve
- twistRotating motion or surprise
- groovesNarrow carved channels
- helicalShaped like a coil
- clockwiseRightward circular motion
counterclockwise · right-hand · left-hand · revolutions · turns · winding · coiling · threading
Fired metal projectile
- spinRapid rotation around axis
- stabilizationProcess of becoming steady
- trajectoryPath of moving object
- velocityDirected rate of motion
accuracy · yaw · precession · gyroscopic · rotation · projectile · flight · drag
Hooped cylindrical vessel
- musketMuzzle-loaded infantry firearm
- carbineShort-barreled lightweight firearm
- pistolCompact one-handed firearm
- handgunFirearm for single-hand use
shotgun · caliber · chamber · muzzle · breech · slug · smoothbore · firearm
Subtractive metalworking process
- gunsmithingFirearm repair craft
- latheRotating shaping machine
- reamerHole-enlarging cutting tool
- broachingIntroducing a subject
electrochemical · tolerances · finishing · lapping · honing · inspection · gauging · tooling
lands
Comes to ground
striations · cuts · impressions · engravings · marks · indentations · patterns · depth · spacing · pitch
helix
Spiraling three-dimensional curve
clockwise · counterclockwise · right-hand · left-hand · revolutions · turns · winding · coiling · threading
bullet
Fired metal projectile
- spinRapid rotation around axis
- stabilizationProcess of becoming steady
- trajectoryPath of moving object
velocity · accuracy · yaw · precession · gyroscopic · rotation · projectile · flight · drag · muzzle
barrel
Hooped cylindrical vessel
- musketMuzzle-loaded infantry firearm
- carbineShort-barreled lightweight firearm
- pistolCompact one-handed firearm
handgun · shotgun · caliber · chamber · muzzle · breech · slug · smoothbore · firearm · longarm
machining
Subtractive metalworking process
- gunsmithingFirearm repair craft
- latheRotating shaping machine
- reamerHole-enlarging cutting tool
broaching · electrochemical · tolerances · finishing · lapping · honing · inspection · gauging · tooling · carbide