Editing Steyr IWS 2000

{{short description|Anti-materiel rifle}}
{{Use dmy dates|date=June 2018}}
{{One source|date = June 2021}}
{{Infobox weapon
|name=IWS 2000
| image= Steyr amr 1.jpg
| image_size = 300
|caption=The Steyr IWS 2000, left side view
|origin=[[Austria]]
|type=[[Anti-materiel rifle]]
<!-- Type selection -->
|is_ranged=Yes
<!-- Service history -->
|service=
|used_by=
|wars=
<!-- Production history -->
|designer=
|design_date=Mid-1980s
|manufacturer=[[Steyr Mannlicher]]
|production_date=
|number=
|variants=IWS 2000<br />AMR 5075
<!-- General specifications -->
|spec_label=
|weight={{convert|18|kg|lb|1|abbr=on}}
|length={{convert|1800|mm|in|1|abbr=on}}
|part_length={{convert|1200|mm|in|1|abbr=on}}
|width=
|height=
|diameter=
<!-- Ranged weapon specifications -->
|cartridge=[[15.2×169mm]] (IWS 2000 and AMR 5075)
|cartridge_weight={{convert|150|g||1|abbr=on}}
|caliber=
|action=[[Recoil operation#Long recoil operation|Long-recoil]]<br />[[Single-shot]]<br/>[[Bolt-action]]<br/>[[Rotating-bolt]]
|rate=
|velocity=1,450 metres per second (4,757 feet per second)
|range=1,000 metres (1,093 yards)
|max_range=2,500 meters (2,734 yards)
|feed=Single-shot
|sights=10x [[telescopic sight]]
}}
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 [[gyroscope|gyroscopic]] spin-stabilization requires the projectile to have aerodynamic stabilizing fins instead. The IWS is chambered in a 15.2×169 mm [[Armour-piercing fin-stabilized discarding sabot|armor-piercing fin-stabilized discarding-sabot]] cartridge, and is the first man-portable rifle to use this type of ammunition.

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==
The weapon is based on a {{convert|9+3/4|in|cm|abbr=on|order=flip}} [[long recoil]] mechanism. This mechanism, usually found in shotguns, helps manage the heavy recoil forces of the 15.2&nbsp;mm Steyr APFSDS round due to its damping effect that allows for force distribution over a longer period of time. After firing, the barrel recoils into a shock-absorbing hydro-pneumatic sleeve much like those found on a [[GIAT LG1|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 [[122 mm howitzer 2A18 (D-30)|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==
The projectile is a 20-gram, 15.2&nbsp;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&nbsp;mm<ref>{{cite web|url=http://www.steyr-aug.com/amr.htm|title=Steyr AMR information sheet|access-date=28 November 2011}}</ref> 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 (firearms)|sabot]] segments weighs 35 grams.

==See also==

*[[List of sniper rifles]]

==References==
{{reflist}}

==External links==
* [http://www.militaryfactory.com/smallarms/imgs/steyr-iws-2000.jpg IWS 2000 (photo)] {{Webarchive|url=https://web.archive.org/web/20120612165349/http://militaryfactory.com/smallarms/imgs/steyr-iws-2000.jpg |date=12 June 2012 }}
* [http://www.remtek.com/arms/steyr/amr/amr.htm Steyr AMR 5075]
* [http://www.steyr-aug.com/amr.htm Steyr IWS 2000]
* [http://modernfirearms.net/en/sniper-rifles/large-caliber-rifles/austria-large-caliber-rifles/steyr-iws-2000-eng/ Modern Firearms]
* [https://www.thefirearmblog.com/blog/2016/12/19/steyr-mannlicher-factory-tour-austria/ Scroll down for photos of IWS 2000]
*[https://www.smallarmsreview.com/archive/detail.arc.entry.cfm?arcid=19546 Small Arms Archive for Ammunition of IWS 2000]

{{Steyr Mannlicher}}
{{Bullpup firearms}}

[[Category:Flechette firearms]]
[[Category:Sniper rifles of Austria]]
[[Category:Anti-materiel rifles]]
[[Category:Single-shot bolt-action rifles]]