.22 lfB
| .22 lfB | |
|---|---|
|
|
| general information | |
| caliber | .22 lfB .22 lr 5.6 × 15 mm |
| Sleeve shape | Rim cartridge |
| Dimensions | |
| Sleeve shoulder ⌀ | 5.72 mm |
| Floor ⌀ | 5.72 mm |
| Cartridge bottom ⌀ | 7.06 mm |
| Sleeve length | 15.57 mm |
| Cartridge length | 25.4 mm |
| Weights | |
| Bullet weight | 1.3-3.9 g (20-60 grain ) |
| Powder weight | approx. 0.105 g (1.62 grain ) |
| total weight | approx. 4 g |
| Technical specifications | |
| Speed v 0 | 128-564 m / s |
| Max. Gas pressure | 1700 bar |
| Bullet energy E 0 | 11-265 years |
| Lists on the subject | |
The cartridge .22 (long for cans ), and .22 lr called (long rifle), is a rimmed cartridge for small caliber - handguns both rifle and as a handgun .
In XWaffe , the data standard of the German National Arms Register , this cartridge is listed as .22lr under catalog number 9.
The .22 lfB ignites with rimfire ignition . The firing pin hits the protruding bottom edge with the initial charge , which ignites the propellant charge .
The colloquial name is caliber "22", since the point for inch is not included in English.
history
The .22-lfB cartridge was introduced in 1887 by the American company J. Stevens Arms & Tool Company , it was a combination of the .22-long case with the projectile of the .22-extra-long cartridge.
Loads
Lead bullets weighing between 1.8 g and 2.6 g are usually used as projectiles . Crosscut calibers with zugefalztem casemouth offered. There are the following designations, each of which differs in speed and bullet weight, but can all be fired from a weapon in .22 lfb caliber (in ascending order according to speed):
- .22 lfb Z (Z = room, extra weak charge)
- .22 lfB Sub Sonic ( subsonic ammunition )
- .22 lfb SV (Standard Velocity, normal speed)
- .22 lfB HV (High Velocity)
- .22 lfB Hyper Velocity (very high speed, e.g. CCI Stinger, Remington Yellow Jacket or Aguila Supermaximum)
The .22 lfb Z is characterized by a particularly low speed (approx. 210 m / s) and thus low noise development. This means that it is possible to train with this cartridge in closed rooms without hearing protection, from which the designation room cartridge is derived.
The .22 lfb Sub Sonic cartridge offers almost the same performance as the standard cartridge, but at a much lower volume, as the projectile does not exceed the speed of sound at around 320 m / s . This is achieved either by using significantly heavier projectiles or by reducing the powder charge.
The standard cartridge (.22 lfb SV) is the cheapest and most widely used cartridge in the caliber .22 lfb (approx. 340 m / s) in sports competitions.
The .22 lfb HV is mainly used in hunting or in disciplines up to 100 m. The higher speed (approx. 400 m / s) allows a relatively strong effect to be achieved. However, this cartridge produces a very loud muzzle bang and should never be fired without hearing protection.
Various manufacturers offer particularly fast Hyper Velocity cartridges in .22 lfb. Their initial speeds reach up to 518 m / s. In order to accommodate the additional powder and thus achieve such a performance, the manufacturers usually extend the sleeve. The bullet is copper-plated and corresponds to that of the .22 caliber short . This compensates for the longer sleeve length.
Requirements for cartridge chamber and barrel
The .22 lfB cartridge requires different chamber dimensions depending on the type of weapon. In the case of revolvers, the chamber has to be only 16.33 mm long from the bottom to the transition and 17.05 mm in length for self-loaders. If the dimension is not reached, the specification of the dimension must be included in the commercial name of the weapon.
use
The ammunition is mostly used in sport shooting (for example free pistol , sport pistol , biathlon ), as a change system for inexpensive training in the main weapon, and in hunting small game. Hunting use is limited by the short range and susceptibility to wind, so that the ammunition is mainly used in construction and trapping of predatory game as well as hunting small animals ( hares , rabbits ).
See also
literature
- Frank C. Barnes: Cartridges of the World: A Complete and Illustrated Reference for Over 1500 Cartridges . 12th edition. Gun Digest Books, Iola WI 2009, ISBN 978-0-89689-936-0 (English).
- Beat Kneubuehl : Bullets. Volume 1: Ballistics, accuracy, mode of action. Motorbuch Verlag, Stuttgart 1998, ISBN 3-7276-7119-X .
- Beat Kneubuehl: Bullets. Volume 2: Ballistics, effectiveness, measurement technology. Motorbuch Verlag, Stuttgart 2004, ISBN 3-7276-7145-9 .
Web links
Individual evidence
- ↑ CIP 22 long rifle (PDF, 20.4 kB) ( Memento from September 30, 2017 in the Internet Archive )
- ↑ Kokalis, Peter: Weapons Tests and Evaluations: The Best of Soldier of Fortune , page 331. Paladin Press, 2001. ISBN 978-1-58160-122-0
- ↑ Interesting facts about the small caliber cartridge (small bore cartridge) schuetzenverein-sand.de, accessed on March 11, 2018 ( Memento from May 9, 2009 in the Internet Archive )