Double-barrelled Shotgun
A double-barreled shotgun is a break-action shotgun with two parallel barrels, allowing two single shots to be fired in quick succession or simultaneously. Construction Modern double-barreled shotguns, often known as ''doubles'', are almost universally break action, with the barrels hinge down at the rear to expose the breech ends for unloading and reloading. Since there is no reciprocating action needed to eject and reload the shells, doubles are more compact than repeating designs such as pump action, lever action, bolt action, or self-loading shotguns. Barrel configuration Double-barreled shotguns come in two basic configurations: * side-by-side (S×S) — the two barrels are arranged horizontally; * over-and-under (O/U) — the two barrels are arranged vertically. The original double-barreled guns were nearly all S×S designs, which was a more practical design for muzzleloaders. Early cartridge-firing shotguns also used the side-by-side action, because they kept the ...
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