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Steyr IWS 2000

December 01, 2023

The Steyr IWS 2000 is an Austrian single-shot bolt-action anti-materiel rifle produced by Steyr Mannlicher. IWS stands for Infantry Weapon System. Unlike other anti-tank rifle designs, it has a smoothbore barrel. This facilitates higher projectile velocities and allows a longer barrel service life, but the lack of gyroscopic spin-stabilization requires the projectile to have aerodynamic stabilizing fins instead. The IWS is chambered in a 15.2×169 mm armor-piercing fin-stabilized discarding-sabot cartridge, and is the first man-portable rifle to use this type of ammunition.

IWS 2000
The Steyr IWS 2000, left side view
TypeAnti-materiel rifle
Place of originAustria
Production history
DesignedMid-1980s
ManufacturerSteyr Mannlicher
VariantsIWS 2000
AMR 5075
Specifications
Mass18 kg (39.7 lb)
Length1,800 mm (70.9 in)
Barrel length1,200 mm (47.2 in)
Cartridge15.2×169mm (IWS 2000 and AMR 5075)
Cartridge weight150 g (5.3 oz)
ActionLong-recoil
Single-shot
Bolt-action
Rotating-bolt
Muzzle velocity1,450 metres per second (4,757 feet per second)
Effective firing range1,000 metres (1,093 yards)
Maximum firing range2,500 meters (2,734 yards)
Feed systemSingle-shot
Sights10x telescopic sight

The first variant of the weapon was the proposed AMR 5075 (AMR standing for anti-materiel rifle). It was to fire the same type of ammunition as the IWS 2000 and to use a 5-round detachable box magazine. However, that version did not pass the proposal stage.

Design edit

The weapon is based on a 25 cm (9+3⁄4 in) long recoil mechanism. This mechanism, usually found in shotguns, helps manage the heavy recoil forces of the 15.2 mm Steyr APFSDS round due to its damping effect that allows for force distribution over a longer period of time. Another unusual feature of this weapon is the movement of the barrel. After firing, the barrel recoils into a shock-absorbing hydro-pneumatic sleeve much like those found on a LG 1 Mark II 105 mm Howitzer. The IWS 2000 also uses a multi-baffle muzzle brake to distribute muzzle energy and further reduce recoil, similar to that used on the D-30 2A18M 122 mm towed howitzer. The entire rifle body is made up of a combination of high-tension plastics and superlight polymers to increase manageability and cut down on weight. The smoothbore barrel is easily detached and packed away for increased mobility. The APFSDS round is inserted from the side of the weapon, much like with usual single-shot rifles.

Ammunition edit

The projectile is a 20-gram, 15.2 mm fin-stabilized discarding-sabot type with armor-piercing capability which the IWS 2000 was specifically designed to fire only. It contains a dart-shaped penetrator of either tungsten carbide or depleted uranium, capable of piercing 40 mm[1] of rolled homogeneous armor at a range of 1,000 m, as well as causing secondary fragmentation. The cartridge consists of a plastic case, a steel head, and a plastic sabot shell around the penetrator, and has a maximum diameter of 26 millimeters, at its base. The complete projectile assembly with its four sabot segments weighs 35 grams.

See also edit

References edit

  1. ^ "Steyr AMR information sheet". Retrieved 28 November 2011.

External links edit

  • IWS 2000 (photo) 12 June 2012 at the Wayback Machine
  • Steyr AMR 5075
  • Steyr IWS 2000
  • Modern Firearms
  • Scroll down for photos of IWS 2000
  • Small Arms Archive for Ammunition of IWS 2000

December 01, 2023
steyr, 2000, austrian, single, shot, bolt, action, anti, materiel, rifle, produced, steyr, mannlicher, stands, infantry, weapon, system, unlike, other, anti, tank, rifle, designs, smoothbore, barrel, this, facilitates, higher, projectile, velocities, allows, l. The Steyr IWS 2000 is an Austrian single shot bolt action anti materiel rifle produced by Steyr Mannlicher IWS stands for Infantry Weapon System Unlike other anti tank rifle designs it has a smoothbore barrel This facilitates higher projectile velocities and allows a longer barrel service life but the lack of gyroscopic spin stabilization requires the projectile to have aerodynamic stabilizing fins instead The IWS is chambered in a 15 2 169 mm armor piercing fin stabilized discarding sabot cartridge and is the first man portable rifle to use this type of ammunition IWS 2000The Steyr IWS 2000 left side viewTypeAnti materiel riflePlace of originAustriaProduction historyDesignedMid 1980sManufacturerSteyr MannlicherVariantsIWS 2000AMR 5075SpecificationsMass18 kg 39 7 lb Length1 800 mm 70 9 in Barrel length1 200 mm 47 2 in Cartridge15 2 169mm IWS 2000 and AMR 5075 Cartridge weight150 g 5 3 oz ActionLong recoilSingle shotBolt actionRotating boltMuzzle velocity1 450 metres per second 4 757 feet per second Effective firing range1 000 metres 1 093 yards Maximum firing range2 500 meters 2 734 yards Feed systemSingle shotSights10x telescopic sightThis article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Steyr IWS 2000 news newspapers books scholar JSTOR June 2021 The first variant of the weapon was the proposed AMR 5075 AMR standing for anti materiel rifle It was to fire the same type of ammunition as the IWS 2000 and to use a 5 round detachable box magazine However that version did not pass the proposal stage Contents 1 Design 2 Ammunition 3 See also 4 References 5 External linksDesign editThe weapon is based on a 25 cm 9 3 4 in long recoil mechanism This mechanism usually found in shotguns helps manage the heavy recoil forces of the 15 2 mm Steyr APFSDS round due to its damping effect that allows for force distribution over a longer period of time Another unusual feature of this weapon is the movement of the barrel After firing the barrel recoils into a shock absorbing hydro pneumatic sleeve much like those found on a LG 1 Mark II 105 mm Howitzer The IWS 2000 also uses a multi baffle muzzle brake to distribute muzzle energy and further reduce recoil similar to that used on the D 30 2A18M 122 mm towed howitzer The entire rifle body is made up of a combination of high tension plastics and superlight polymers to increase manageability and cut down on weight The smoothbore barrel is easily detached and packed away for increased mobility The APFSDS round is inserted from the side of the weapon much like with usual single shot rifles Ammunition editThe projectile is a 20 gram 15 2 mm fin stabilized discarding sabot type with armor piercing capability which the IWS 2000 was specifically designed to fire only It contains a dart shaped penetrator of either tungsten carbide or depleted uranium capable of piercing 40 mm 1 of rolled homogeneous armor at a range of 1 000 m as well as causing secondary fragmentation The cartridge consists of a plastic case a steel head and a plastic sabot shell around the penetrator and has a maximum diameter of 26 millimeters at its base The complete projectile assembly with its four sabot segments weighs 35 grams See also editList of sniper riflesReferences edit Steyr AMR information sheet Retrieved 28 November 2011 External links editIWS 2000 photo Archived 12 June 2012 at the Wayback Machine Steyr AMR 5075 Steyr IWS 2000 Modern Firearms Scroll down for photos of IWS 2000 Small Arms Archive for Ammunition of IWS 2000 Retrieved from https en wikipedia org w index php title Steyr IWS 2000 amp oldid 1176166255, wikipedia, wiki, book, books, library,

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