4.38×30mm Libra

Last updated • a couple of secsFrom Wikipedia, The Free Encyclopedia
4.38×30mm Libra
TypePersonal defence weapon
Pistol
Place of origin Czech Republic
Production history
DesignerVlastimil Libra
Designed2002
ManufacturerCzech Weapons (ČZW)
Specifications
Parent case .22 Hornet
Case typeRimless, bottlenecked
Bullet diameter4.40 mm (0.173 in)
Land diameter4.28 mm (0.169 in)
Neck diameter4.90 mm (0.193 in)
Shoulder diameter6.88 mm (0.271 in)
Base diameter7.56 mm (0.298 in)
Rim diameter7.65 mm (0.301 in)
Rim thickness1.24 mm (0.049 in)
Case length30.10 mm (1.185 in)
Overall length41.00 mm (1.614 in) [1]
Maximum pressure430 MPa (62,000 psi) [1]
Ballistic performance
Bullet mass/typeVelocityEnergy
45 gr (3 g) Spitzer2,300 ft/s (700 m/s)528 ft⋅lbf (716 J)
Source(s): Small Arms Defense Journal

The 4.38×30mm Libra (.17 Libra) is a centerfire cartridge designed for use in personal defense weapons.

Contents

Description

It was designed and has been manufactured by ČZW for use in their ČZW-438 PDW. [2]

The cartridge is based on a .22 Hornet cartridge converted to a rimless design and necked down to .17 calibre. [3]

Variants

See also

Related Research Articles

<span class="mw-page-title-main">Cartridge (firearms)</span> Ammunition consisting of a casing, projectile, propellant, and primer

A cartridge, also known as a round, is a type of pre-assembled firearm ammunition packaging a projectile, a propellant substance and an ignition device (primer) within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for convenient transportation and handling during shooting. Although in popular usage the term "bullet" is often used to refer to a complete cartridge, the correct usage only refers to the projectile.

<span class="mw-page-title-main">.380 ACP</span> Pistol cartridge designed by John Moses Browning

The .380 ACP (9×17mm) is a rimless, straight-walled pistol cartridge developed by firearms designer John Moses Browning. The cartridge headspaces on the mouth of the case. It was introduced in 1908 by Colt, for use in its new Colt Model 1908 pocket hammerless semi-automatic, and has been a popular self-defense cartridge ever since, seeing wide use in numerous handguns. Other names for .380 ACP include .380 Auto, 9×17mm, 9mm Browning, 9mm Corto, 9mm Kurz, 9mm Short, and 9mm Browning Court. It should not be confused with .38 ACP. The .380 ACP does not strictly conform to cartridge naming conventions, named after the diameter of the bullet, as the actual bullet diameter of the .380 ACP is .355 inches.

<span class="mw-page-title-main">.38 Super</span> Pistol cartridge designed by Colts Manufacturing Company, LLC

The .38 Super, also known as .38 Super +P, .38 Super Auto, .38 Super Automatic, .38 Super Automatic +P, or 9×23mmSR, is a pistol cartridge that fires a 0.356-inch-diameter (9.04 mm) bullet. It was introduced in the late 1920s as a higher pressure loading of the .38 ACP, also known as .38 Auto. The older .38 ACP cartridge propels a 130-grain (8.4 g) bullet at 1,050 ft/s (320.0 m/s), whereas the .38 Super pushes the same bullet at 1,280 ft/s (390.1 m/s). The .38 Super has gained distinction as the caliber of choice for many top practical shooting competitors; it remains one of the dominant calibers in IPSC competition.

<span class="mw-page-title-main">Personal defense weapon</span> Self-defense firearm

Personal defense weapons (PDWs) are a class of compact, magazine-fed, submachine gun-like firearms designed to fire rifle-like cartridges. Most PDWs fire a small-caliber, high-velocity centerfire bottleneck cartridge resembling a scaled-down intermediate rifle cartridge, essentially making them an "in-between" hybrid between a submachine gun and a carbine.

<span class="mw-page-title-main">.308 Winchester</span> Rimless, centerfire, bottlenecked rifle cartridge

The .308 Winchester is a smokeless powder rimless bottlenecked rifle cartridge widely used for hunting, target shooting, police, military, and personal protection applications globally. It is similar, but not identical, to the 7.62×51mm NATO cartridge.

<span class="mw-page-title-main">7.62×54mmR</span> Russian military rifle cartridge

The 7.62×54mmR is a rimmed rifle cartridge developed by the Russian Empire and introduced as a service cartridge in 1891. Originally designed for the bolt-action Mosin–Nagant rifle, it was used during the late tsarist era and throughout the Soviet period to the present day. The cartridge remains one of the few standard-issue rimmed cartridges still in military use, and has one of the longest service lives of any military-issued cartridge.

<span class="mw-page-title-main">.22 Hornet</span> Rifle cartridge

The .22 Hornet or 5.6×36mmR Hornet is a varminting, small-game hunting, survival and competition centerfire rifle cartridge commercially introduced in 1930. It is considerably more powerful than the rimfire .22 WMR and the .17 HMR, achieving higher velocity with a bullet twice the weight of the .17 HMR bullet. The Hornet also differs significantly from these in that being a centerfire cartridge makes it reloadable, and thus more versatile. It was the smallest commercially available .22 caliber centerfire cartridge until the introduction of the FN 5.7×28mm.

<span class="mw-page-title-main">Wildcat cartridge</span> Custom cartridge for firearms

A wildcat cartridge, often shortened to wildcat, is a custom cartridge for which ammunition and/or firearms are not mass-produced. These cartridges are often created in order to optimize a certain performance characteristic of an existing commercial cartridge, or may merely be intended as novelty items.

A rim is an external flange that is machined, cast, molded, stamped, or pressed around the bottom of a firearms cartridge. Thus, rimmed cartridges are sometimes called "flanged" cartridges. Almost all cartridges feature an extractor or headspacing rim, in spite of the fact that some cartridges are known as "rimless cartridges". The rim may serve a number of purposes, including providing a lip for the extractor to engage, and sometimes serving to headspace the cartridge.

<span class="mw-page-title-main">Moon clip</span> Ring-shaped holder for revolver cartridges

A moon clip is a ring-shaped or star-shaped piece of metal designed to hold multiple cartridges together as a unit, for simultaneous insertion and extraction from a revolver cylinder. Moon clips may either hold an entire cylinder's worth of cartridges together, half a cylinder, or just two neighboring cartridges. The two-cartridge moon clips can be used for those revolvers that have an odd number of loading chambers such as five or seven and also for those revolvers that allow a shooter to mix both rimless and rimmed types of cartridges in one loading of the same cylinder.

<span class="mw-page-title-main">.22-250 Remington</span> Rifle cartridge

The .22-250 Remington is a very high-velocity, short action, .22 caliber rifle cartridge primarily used for varmint hunting and small game hunting. It is capable of reaching over 4,000 feet per second. It does find occasional use by women and young children for deer hunting because of its low recoil. Some jurisdictions prohibit the use of cartridges smaller than 6 mm for deer hunting. This cartridge is also sometimes known as the .22 Varminter or the .22 Wotkyns Original Swift. Along with the .220 Swift, the .22-250 was one of the high-velocity .22 caliber cartridges that developed a reputation for remote wounding effects known as hydrostatic shock in the late 1930s and early 1940s.

<span class="mw-page-title-main">.220 Swift</span> Rifle cartridge

The .220 Swift (5.56×56mmSR) is a semi-rimmed rifle cartridge developed by Winchester and introduced in 1935 for small game and varmint hunting. It was the first factory-loaded rifle cartridge with a muzzle velocity of over 1,200 m/s (4,000 ft/s).

<span class="mw-page-title-main">.17 Hornet</span>

The .17 Hornet is a .17 caliber centerfire rifle cartridge originally offered as a "wildcat cartridge" developed by P.O. Ackley in the early 1950s. He created this non-factory (wildcat) offering by simply necking-down the .22 Hornet to .17 caliber and fire-forming the resized cases in his new chamber design. The result was a small quiet cartridge capable of high velocity. Ackley mentions it as one of the most balanced of the .17 cartridges of his time; likely, this is still true.

<span class="mw-page-title-main">.45 Auto Rim</span> Revolver cartridge designed by the Peters Cartridge Company

The .45 Auto Rim, also known as 11.5x23mmR, is a rimmed cartridge specifically designed to be fired in revolvers originally chambered for the .45 ACP cartridge.

.22 caliber, or 5.6 mm caliber, refers to a common firearms bore diameter of 0.22 inch (5.6 mm).

The 5.8×21mm DAP is a Chinese armor-piercing cartridge for handguns and submachine guns.

<span class="mw-page-title-main">HK 4.6×30mm</span> PDW cartridge designed for HK MP7

The 4.6×30mm cartridge is a small-caliber, high-velocity, smokeless powder, rebated, bottleneck, centerfire cartridge designed for personal defense weapons (PDW) developed by German armament manufacturer Heckler & Koch (HK) in 1999. It was designed primarily for the MP7 PDW to minimize weight and recoil, while increasing penetration of body armor. It features a pointed, steel-core, brass-jacketed bullet.

<span class="mw-page-title-main">Varmint rifle</span> Term for small-caliber firearms for hunting small animals

Varmint rifle is an English term for a small-caliber precision firearm or high-powered airgun primarily used for both varmint hunting and pest control. These tasks include killing three types of pests or nuisance animals that spread diseases or destroy crops or livestock:

The .400/360 Nitro Express cartridges are a number of very similar, but not interchangeable, centerfire rifle cartridges developed by James Purdey & Sons, William Evans, Westley Richards and Fraser of Edinburgh, all at the beginning of the 20th century.

The ČZW-438 is a personal defense weapon designed by Czech Weapons (ČZW), aiming at increasing range and armor penetration.

References

  1. 1 2 "17 Libra" (PDF). C.I.P. TDCC. Archived from the original (PDF) on 18 November 2020. Retrieved 18 July 2013.
  2. Czech Weapons Product Page http://www.czechweapons.com/en/czw-438/
  3. ".17 Libra". municion.org. Munición. Retrieved 18 July 2013.