Ontario's Premier Club since 1949

Shotgun terminology

 Phrase Explanation 
 Action  The moving parts that allow you to load, fire and unload your shotgun.
 Barrel Selector
 Determines which barrel of a double barrel gun you will fire first.
 Blacking/Blueing  The blue coloration applied to protect gun barrels.
 Box-Lock  A type of gun action, often recognizable by its squared appearance.
 Breech  The end of the barrel nearest to the stock.
 Break Open  In a hinge type gun, where the barrels are dropped open and clear of the action, exposing the  chambers to view.
 Butt  The rear of the shoulder end of the gun's stock.
 Comb  The side of the stock that fits against your cheek.
 Chamber  The part of the action, at the breech end of the barrel, into which the shot shell is placed.
 Choke  The degree of narrowing or constriction of the bore at the muzzle end of the barrel. Intended  to increase the effective range of the gun.
 Ejector  The mechanism on shotguns by which spent shot cases are automatically ejected from the gun  when it is opened after firing.
 Forearm  The part of the stock that lies under the barrel.
 Full Choke  The tightest constriction or narrowing of the bore, producing the greatest effective range.
 Grip  The narrow portion of the stock held with the trigger hand.
 Gauge  The number of round lead balls of the bore diameter required to make 1lb of combined weight. The exception is .410 which is a bore calibre in inches. The smaller the gauge number  the larger the bore size.
 Hinge  A type of action in which a hinge mechanism separates the barrel from the standing breech  block, providing access to the chamber.
 Improved Cylinder  Least constricted or narrowed choke causing shot pattern to widen relatively quickly.
 Modified Choke  Moderate constriction or narrowing of the bore.
 Muzzle  The end of the barrel from which the shot exits.
 Over-and-Under  A two barrelled shotgun with one barrel placed over the other.
 Pump  A type of action that loads and ejects shells by "pumping" the forearm of the stock back and  forth.

“Safety” This is a completely wrong explanation & we should not imply the use of this switch makes a gun “safe”. The “Safety Catch” is a device which prevents mechanical action of the trigger from engaging the sear which releases the firing hammers that strike the firing pins. A “Safaty Catch” does NOT make it impossible to fire a gun, it only prevents (as best as possible) the trigger from initiating the mechanical firing sequence. The intended use is in hunting to prevent a clothing snag causing a discharge where a loaded gun is transferred from a carry position (under the arm or in the crook of the arm) to a normal firing position. In a target gun it serves no purpose whatsoever which is why most target guns do not have auto resetting safety catches.

 Semi Automatic   A type of action in which gas from a burning gunpowder in the shell automatically ejects the  spent shell that loads another.
 Shot  Round projectiles, usually of lead or steel.
 Shot Pattern   The concentration of a shot measured in a circle at a given range, usually 30 to 40 yards.
 Side-by-Side  A shotgun with two barrels sitting side by side.

 Stock  The "handle" of the shotgun, the part held to the shoulder, comprising the butt, comb,  grip  and forearm.
 Shell or Shotshell  The ammunition fired by shotguns, consisting of five components: the case,  primer, powder  charge, wad, and shot.
 Trigger  Finger-pulled lever (single, double, or release) that drives the firing point forward and fires the  gun.

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