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Glossary Results

E - 26 matching terms

EAR PROTECTION
A recommended safety practice utilizing approved earplugs or muffs.

EFFECTIVE RANGE
See Range, Effective

EJECTION
The act of expelling a cartridge or fired case from a firearm.

EJECTION PORT
See Port.

EJECTOR
A device which expels cartridges or fired cases from a firearm.

EJECTOR ROD
That component which actuates the extractor and/or ejector. Can be manual or automatic. Also called Extractor Rod.

EJECTOR, AUTOMATIC
A device in double-guns which expels fired cases when the action is opened.

ELEVATION ADJUSTMENT
The vertical movement of a sight to compensate for vertical displacement of a bullet or bullets from the aiming point.

ENERGY, FORMULA
The following formula is used to obtain kinetic energy of a projectile: E = WV2/14,000gc where: W = weight of projectile, in grains V = velocity, in feet per second gc = gravitational constant, 32.16 feet/second2

ENERGY, PROJECTILE
The capacity of a projectile to do work, commonly expressed in the foot-pounds, joules or kilogram meters. Sometimes called Bullet Energy.

ENERGY, TERMINAL
Projectile energy at the time it strikes a target. Sometimes called Striking Energy.

ENGINE TURNING
A geometric design of abrasively formed overlapping circles on the metallic surfaces of a firearm. Also called Jeweling.

ENGRAVING, BULLET
See Bullet Engraving.

ESCUTCHEON
A metal or plastic reinforcement around a screw hole.

EXPANDER PLUG
1. A cylindrical plug of proper diameter that is inserted into the neck of a resized cartridge case to expand the diameter to its proper size. Also called Ball Sizing Plug.
2. A tool used to remove dents in shotgun barrels.

EXPANDING BULLET
See Bullet, Expanding.

EXPLOSION
The sudden release of energy of sufficient magnitude to create a pressure wave. The energy to produce an explosion may come from a variety of sources; including nuclear, pressure or chemical reaction. 1. Examples of pressure related explosions include a rapid change in state (liquid to gas, for example) or by the over pressurization of a container (i.e., the failure of a gas cylinder). 2. A chemical explosion is the event in which a quantity of matter is instantaneously converted to gaseous product, with the generation of high temperature and pressure.

EXTENSION RIB
See Rib, Extension.

EXTERIOR BALLISTICS
See Ballistics, Exterior.

EXTRACTION
The act of withdrawing a cartridge or fired case from the chamber of a firearm.

EXTRACTION GROOVE
A groove turned in the side wall of a cartridge case just forward of the face of the head for the purpose of extraction. Also called Cannelure.

EXTRACTOR
Device for withdrawing the cartridge or fired case from the chamber.

EXTRACTOR CUT
Usually a recess in the barrel of a firearm to accommodate an extractor.

EXTRACTOR ROD
See Ejector Rod.

EXTREME RANGE
See Range, Maximum.

EYE PROTECTION
A recommended safety practice utilizing approved safety glasses.

A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

Abbreviations:

A-L | M-Z