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.22 BB Cap (Bulleted Breech Cap) also known as the 6mm Flobert, is a variety of .22
caliber A 45 ACP hollowpoint (Federal Cartridge, Federal HST) with two .22 Long Rifle, 22 LR cartridges for comparison In guns, particularly firearm A firearm is any type of gun designed to be readily carried and used by an individual. The t ...

caliber
rimfire ammunition. Invented by Louis-Nicolas Flobert in 1845, it was the first rimfire metallic cartridge. The .22 BB Cap and .22 CB Cap are interchangeable and are relatively quiet low velocity cartridges, designed for indoor target shooting.


History

Frenchman Louis-Nicolas Flobert invented the first rimfire metallic cartridge in 1845. His cartridge consisted of a
percussion cap The percussion cap or percussion primer, introduced in the early 1820s, is a type of single-use percussion ignition device for muzzle loader firearm locks enabling them to fire reliably in any weather condition. This crucial invention gave rise ...
with a bullet attached to the top. Flobert then made what he called " parlor guns" for this cartridge, as these rifles and pistols were designed to be shot in indoor shooting parlors in large homes. Usually derived in the 6 mm and 9 mm calibres, it is since then called the Flobert cartridge, but it does not contain any powder; the only
propellant A propellant or propellent is a chemical substance used in the Energy production, production of energy or pressurized gas that is subsequently used to create fluid dynamics, movement of a fluid or to generate propulsion of a vehicle, projectile, or ...
substance contained in the cartridge is within the percussion cap.Shooting section (''la section de tir'')
of the official website (in French) of a modern indoor shooting association in Belgium, ''Les Arquebusier de Visé''. In Europe, the .22 BB Cap and .22 CB Cap are both called 6mm Flobert and are considered the same cartridge.


Description

These rimfires closely resemble a .22 caliber
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in power and are often used for indoor shooting and close range pest control. Developed for indoor shooting galleries with special "
gallery gun A gallery gun, Flobert gun, parlor gun or saloon gun is a type of firearm designed for recreational indoor target shooting. These guns were developed in 1845, when French inventor Louis-Nicolas Flobert created the first rimfire ammunition, rimfi ...
s", the .22 BB Cap was the first rimfire cartridge, dating back to 1845. It has no separate
propellant A propellant or propellent is a chemical substance used in the Energy production, production of energy or pressurized gas that is subsequently used to create fluid dynamics, movement of a fluid or to generate propulsion of a vehicle, projectile, or ...
charge, relying on the impulse created by the primer alone to fire a round
lead Lead is a chemical element with the Symbol (chemistry), symbol Pb (from the Latin ) and atomic number 82. It is a heavy metals, heavy metal that is density, denser than most common materials. Lead is Mohs scale of mineral hardness#Intermediate h ...
ball. This results in a low muzzle velocity of around 700 ft/s (210 m/s) or less. More common is the .22 CB cap, which fires a slightly heavier conical bullet and is available in a variety of cartridge lengths.


Specifications

* Length: ** Case: .284 in (7.2 mm) ** Overall: .343 in (8.7 mm) * Bullet weight: 18 gr (1.17 g)


See also

* .22 CB *
.22 Short .22 Short is a variety of .22 caliber (5.6 mm) rimfire ammunition Rimfire ammunition is a type of firearm A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in d ...
* .22 Long * .22 Long Rifle * .22 Magnum *
List of rimfire cartridges Below is a list of rimfire cartridgesRimfire may refer to: * Rimfire (film), ''Rimfire'' (film), a 1949 noir Western * Rimfire ammunition, a type of firearm cartridge See also * Rim Fire, a 2013 wildfire in California * Rim of fire {{disambig ... ...


References

{{DEFAULTSORT:22 BB Pistol and rifle cartridges Rimfire cartridges