The .22 CB cap (conical breech cap) is a more powerful version of the .22 BB cap (aka: 6mm Flobert) rimfire metallic cartridge, which was invented by Louis-Nicolas Flobert in 1845. The .22 BB cap and .22 CB cap are interchangeable and are relatively quiet, low velocity cartridges, designed for indoor target shooting.
Designed to be a cross between the .22 BB and .22 Short, and first catalogued in around 1888 (though probably first made before that), it "managed to combine about all the disadvantages...[of both] into one generally useless cartridge",[2] being no more accurate than either while being noisier than the .22 BB cap, and penetrating much deeper, requiring a backstop as strong as for the .22 Short, thereby negating the CB cap's advantages for shooting indoors.[2] American ammunition manufacturers dropped the .22 CB cap in the 1940s.[2]
In Europe, the .22 BB cap and .22 CB cap are both called "6mm Flobert" and are considered the same cartridge. In Europe, the cartridge is still used in cheap rifles meant for short-range pest control. Although RWS in Germany, Eley-Kynoch in Britain, and Alcan stopped making the 6mm Flobert in the 1970s,[2] it is still manufactured and sold in some European countries. For example, in the Czech Republic and Slovakia, Flobert guns fall within the same weapon category as air rifles, which are usually unaffected by gun laws. 6mm Flobert ammunition is also used in antique firearms chambered for the .22 Short and the .22 Long, as most modern ammunition has much higher pressure than the old black powder cartridges these guns were chambered for.
Description
The .22 CB cap has a very small propellant charge (usually no gunpowder, just the primer), resulting in a low muzzle velocities of between 350 and 853 feet per second (107 and 260 m/s).[3] Due to their low power, classic CB rounds used in indoor target practice can be trapped by many pellet gun traps since some modern pellet guns exceed the velocity of the CB round (however, this depends on the limits designed in the individual pellet trap). In longer rifle barrels the CB has a very quiet, seemingly non-existent report due to the lack of residual pressure at the muzzle (see Internal ballistics). The CB loses velocity fast in longer barrels, due to the lack of anything other than the primer as a propellant.
Modern rounds
The original .22 CB cap has the same tiny case as the .22 BB cap and the two cartridges are interchangeable. There are now .22 rounds sold as .22 CB Short and .22 CB Long which come in the standard .22 Rimfire cartridge case sizes to allow the rounds to be used in standard magazine-fed firearms which would likely jam with the tiny BB or CB cases. The CCI .22 CB Short and .22 CB Long use the same 29-grain bullet as the regular .22 Short and .22 Long. The CCI CB rounds have muzzle velocities of 720 feet per second (ft/s) for an impact energy of 33 foot/pounds (ft-lb). The standard .22 Short and .22 Long fire the same bullet weight at 1,045 ft/s for 70 ft-lb. The CB rounds are relatively quiet for short range target practice, control of small pests, or use in older .22 guns that might not be safe with modern high pressure rounds. For trapping these CB Short and CB Long rounds in indoor target practice, a standard .22 bullet trap is needed. Other modern CB type rounds, such as the .22 Aguila Colibri and .22 Aguila Super Colibri, have bullets in the same weight range as the original CB cap with velocities in the 300 ft/s to 500 ft/s range using the Long case.
Barnes, Frank C., ed. by John T. Amber. ".22 CB Cap", in Cartridges of the World, pp. 273, 282, & 283. Northfield, IL: DBI Books, 1972. ISBN0-695-80326-3.
References
Wikimedia Commons has media related to .22 CB cap.
^Cartridges of the World 11th Edition, Book by Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, ISBN0-89689-297-2 pp. 490, 492
^Cartridges of the World 11th Edition, Book by Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, ISBN0-89689-297-2 p. 476
January 07, 2023
this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, january, 2013, learn, when,. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources 22 CB news newspapers books scholar JSTOR January 2013 Learn how and when to remove this template message The 22 CB cap conical breech cap is a more powerful version of the 22 BB cap aka 6mm Flobert rimfire metallic cartridge which was invented by Louis Nicolas Flobert in 1845 The 22 BB cap and 22 CB cap are interchangeable and are relatively quiet low velocity cartridges designed for indoor target shooting 22 Flobert CBA 22 CB cap 22 Short and 22 Long RifleTyperimfire targetPlace of originFranceProduction historyDesignerLouis Nicolas FlobertDesigned1888Produced1888SpecificationsParent case 22 BBBullet diameter 222 in 5 6 mm Neck diameter 225 in 5 7 mm Base diameter 225 in 5 7 mm Rim diameter 271 in 6 9 mm Rim thickness 040 in 1 0 mm Case length 284 in 7 2 mm Overall length 520 in 13 2 mm Primer typeRimfireBallistic performanceBullet mass type Velocity Energy18 gr 1 g Dynamit Nobel 6 mm Flobert Patronen 720 ft s 220 m s 28 J 21 ft lbs 18 gr 1 g Sellier amp Bellot 22 FLOBERT CB 853 ft s 260 m s 39 J 29 ft lbs Source s Cartridges of the World 11th Edition 1 Contents 1 History 2 Description 2 1 Modern rounds 3 Specifications 4 See also 5 Literature 6 ReferencesHistory EditDesigned to be a cross between the 22 BB and 22 Short and first catalogued in around 1888 though probably first made before that it managed to combine about all the disadvantages of both into one generally useless cartridge 2 being no more accurate than either while being noisier than the 22 BB cap and penetrating much deeper requiring a backstop as strong as for the 22 Short thereby negating the CB cap s advantages for shooting indoors 2 American ammunition manufacturers dropped the 22 CB cap in the 1940s 2 In Europe the 22 BB cap and 22 CB cap are both called 6mm Flobert and are considered the same cartridge In Europe the cartridge is still used in cheap rifles meant for short range pest control Although RWS in Germany Eley Kynoch in Britain and Alcan stopped making the 6mm Flobert in the 1970s 2 it is still manufactured and sold in some European countries For example in the Czech Republic and Slovakia Flobert guns fall within the same weapon category as air rifles which are usually unaffected by gun laws 6mm Flobert ammunition is also used in antique firearms chambered for the 22 Short and the 22 Long as most modern ammunition has much higher pressure than the old black powder cartridges these guns were chambered for Description EditThe 22 CB cap has a very small propellant charge usually no gunpowder just the primer resulting in a low muzzle velocities of between 350 and 853 feet per second 107 and 260 m s 3 Due to their low power classic CB rounds used in indoor target practice can be trapped by many pellet gun traps since some modern pellet guns exceed the velocity of the CB round however this depends on the limits designed in the individual pellet trap In longer rifle barrels the CB has a very quiet seemingly non existent report due to the lack of residual pressure at the muzzle see Internal ballistics The CB loses velocity fast in longer barrels due to the lack of anything other than the primer as a propellant Modern rounds Edit The original 22 CB cap has the same tiny case as the 22 BB cap and the two cartridges are interchangeable There are now 22 rounds sold as 22 CB Short and 22 CB Long which come in the standard 22 Rimfire cartridge case sizes to allow the rounds to be used in standard magazine fed firearms which would likely jam with the tiny BB or CB cases The CCI 22 CB Short and 22 CB Long use the same 29 grain bullet as the regular 22 Short and 22 Long The CCI CB rounds have muzzle velocities of 720 feet per second ft s for an impact energy of 33 foot pounds ft lb The standard 22 Short and 22 Long fire the same bullet weight at 1 045 ft s for 70 ft lb The CB rounds are relatively quiet for short range target practice control of small pests or use in older 22 guns that might not be safe with modern high pressure rounds For trapping these CB Short and CB Long rounds in indoor target practice a standard 22 bullet trap is needed Other modern CB type rounds such as the 22 Aguila Colibri and 22 Aguila Super Colibri have bullets in the same weight range as the original CB cap with velocities in the 300 ft s to 500 ft s range using the Long case Specifications EditCase length BB and CB cap 0 284 inches 7 2 mm Short 0 423 inches 10 7 mm Long 0 613 inches 15 6 mm Bullet weight BB and CB cap typically 18 grains 1 15 g Short and Long typically 29 grains 1 9 g Muzzle velocity BB Cap typically 780 f s 240 m s CB Cap typically 853 f s 260 m s Short typically 900 f s 275 m s Long typically 1060 f s 320 m s See also Edit 22 BB 22 Short 22 Long 22 Extra Long 22 Long Rifle 22 Magnum 22 Hornet List of rimfire cartridgesLiterature EditBarnes Frank C ed by John T Amber 22 CB Cap in Cartridges of the World pp 273 282 amp 283 Northfield IL DBI Books 1972 ISBN 0 695 80326 3 References Edit Wikimedia Commons has media related to 22 CB cap Cartridges of the World 11th Edition Book by Frank C Barnes Edited by Stan Skinner Gun Digest Books 2006 ISBN 0 89689 297 2 pp 490 492 a b c d Barnes p 273 22 CB Cap Cartridges of the World 11th Edition Book by Frank C Barnes Edited by Stan Skinner Gun Digest Books 2006 ISBN 0 89689 297 2 p 476 Retrieved from https en wikipedia org w index php title 22 CB amp oldid 1119524202, wikipedia, wiki, book, books, library,
