The knob on some iron and telescopic sights which is turned in either direction to adjust the horizontal setting of the notch, aperture or reticle of the sight.
Archives: Glossary
Glossary custom post type
WINDAGE MICROMETER
A micrometer type device found on some iron and telescopic sights which allows the shooter to make precision adjustments to the horizontal setting.
WING SAFETY
A manual safety found on some bolt action rifles, usually mounted at the rear of the bolt assembly, which pivots in an arc at right angles to the bore line.
WITNESS MARK
A line on each of two mating parts used to indicate proper alignment. Also known as Draw-Line or Index Mark.
WUNDHAMMER SWELL (BULGE)
A bulge or swelling in the pistol grip of a stock to fit the palm of the trigger hand. Named after inventor Louis Wundhammer.
X-RING
A circle inside the highest scoring ring on a target, used to break ties in shooting matches. The shooter with the most X-Ring hits wins.
YAW
The angle between the longitudinal axis of a projectile and a line tangent to the trajectory through the center of gravity.
UNIVERSAL RECEIVER
A heavy duty mechanical device into which chambered barrels are secured for testing ammunition.
UNLOAD
1. The complete removal of all ammunition from a firearm and it’s magazine 2. Disassembly of a cartridge or shell.
U-NOTCH SIGHT
A rear sight on pistols or revolvers having a flat top with a “U” shaped notch used with bead-topped front sight. Named after Ira Paine, 19th Century match and exhibition shooter. Also known as Paine Sight.