|
Calibre
1. A term used to designate the specific pellet for which a rifle is chambered, also the approximate diameter of the circle formed by the tops of the lands of a rifled barrel. In terms of pellets it is a numerical term included in a pellet name to indicate a rough approximation of the pellet diameter. Proper style for calibre designations is no decimal point. eg: 177, 2, 20, 25.
|
|
|
Carbine
A rifle of short length and light weight.
|
|
|
Chamber
The cavity at the breech end of the barrel bore that has been formed to accept and support a specific pellet.
|
|
|
Checkering
A diamond-like pattern in the wood, plastic or metal components of a rifle for ornamentation or improved gripping.
|
|
|
Cheekpiece
A raised part of the side of the stock of a shoulder-arm against which the shooter rests his face. Usually associated with a Monte Carlo-type stock. Its purpose is to raise the shooter's eye to the height necessary to maintain the triangle of force.
|
|
|
Chronograph
Electronic instrument used for measuring the velocity of a pellet. An important part of a airgunners equipment as it helps to determine the power level of a rifle and keep it with the legal limts. It can also help with tuning an airgun to test for consistency of shots.
|
|
|
Collimator
Device used in roughly sighting in telescopic sight without firing a shot. It comes with a pin for every calibre it is to be used for. The pin is inserted in the barrel to keep the collimator aligned with the bore, and then the scope is set in such a way that the cross-hairs/reticle are aligned with that of the collimator.
|
|
|
Compensator
A device attached to the muzzle end of the barrel that utilizes propelling gases to reduce recoil.
|
|
|
Concealment
Protection from view. This is not necessarily the same as cover. Cover provides concealment, but concealment does not always provide cover.
|
|
|
Corrosion
The eating away of the bore by rust or chemical reaction.
|
|
|
Cross Dominance
A shooter with a dominant hand and a dominant eye that are not on the same side; for example, a right-handed shooter with a dominant left eye.
|
|
|
Crown
Configuration of exit part of the muzzle. The barrel is not merely cut off and left with the sharp edges, but the edge from the inside is rounded towards the outside. The form and angle of this has an influence on accuracy and stability of the pellet. The concentricity of the crown is very important, as variations will negatively influence the pellet as it exits the muzzle. The rifling at the end of the barrel can be slightly relieved, or recessed. The purpose is to protect the forward edge of the rifling from damage, which can ruin accuracy.
|
|