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The change from one barrel to the other may be done by a clockwork type system, where a cam alternates between barrels, or by an inertial system where the recoil of firing the first barrel toggles the trigger to the next barrel. A double-barreled shotgun with an inertial trigger works best with full power shotshells; shooting low recoil ...
A break action is a type of firearm where the barrel(s) are hinged and can be "broken open" to expose the breech. Multi-barrel break action firearms are usually subdivided into over-and-under or side-by-side configurations for two barrel configurations or "combination gun" when mixed rifle and shotgun barrels are used.
The DoubleTap is distinctive for its two barrels, each carrying a chambered round. It also carries two additional rounds (on a 2-round Bianchi Speed Strip) in the grip which allow for reloading. An ambidextrous thumb latch releases the action but the pistol does not have ejectors; spent rounds must be manually removed if they do not fall free ...
Shot, small and round and delivered without spin, is ballistically inefficient. As the shot leaves the barrel it begins to disperse in the air. The resulting cloud of pellets is known as the shot pattern, or shotgun shot spread. The ideal pattern would be a circle with an even distribution of shot throughout, with a density sufficient to ensure ...
Remington Model 95 with pearl grips and barrels open for reloading COP .357 Magnum derringer. The original Philadelphia Deringer was a small single-barrel, muzzleloading caplock pistol designed by Henry Deringer (1786–1868) and produced from 1852 to 1868, and was a popular concealed carry single-shot handgun of the era widely copycatted by competitors. [6]
A four-shot superposed load pistol, with the lock positioned to ignite the rear-most charge. The covers for the forward touchholes are open. A superposed load or stacked charge or superimposed load is a method used by various muzzle-loading firearms, from matchlocks to caplocks, including a few modern weapons, such as Metal Storm, to fire multiple shots from a single barrel without reloading. [1]
Before the barrel can release the bullet in a consistent manner, it must grip the bullet in a consistent manner. The part of the barrel between where the bullet exits the cartridge, and engages the rifling, is called the "throat", and the length of the throat is the freebore. In some firearms, the freebore is zero as the act of chambering the ...
The earliest rotary-barrel firearm is the Gatling gun, invented by Richard Jordan Gatling in 1861, and patented on 4 November 1862. [75] [76] The Gatling gun operated by a hand-crank mechanism, with six barrels revolving around a central shaft (although some models had as many as ten). Each barrel fires once per revolution at about the same 4 o ...