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Csm Scharfschuetzengewehr-STEYR-HS.50-M1 4b0e10ab04

A Steyr HS .50, an example of an anti-materiel rifle.

An anti-materiel rifle (AMR) is a rifle that is designed for use against military equipment (materiel), rather than against other combatants. 

HistoryEdit

The origins of the anti-materiel rifle go back to the First World War, during which the first anti-tank rifles appeared. While modern tanks and most other armored vehicles are too well protected to be affected by anti-materiel rifles, the guns are still effective for attacking unarmored or lightly armored vehicles. They can also be used against stationary enemy aircraft, missile launchers, radar equipment, small watercraft, communications equipment, crew served weapons and similar targets. Their value is in being able to precisely target and disable enemy assets from long range for a relatively low cost.

Despite having been designed to be used against equipment, the rifles also proved useful in dispatching enemy personnel from superior range, including enemy snipers. This, however, requires that the enemy cannot use arms with similar effective range - which e.g. was the case during the War on Terror in Afghanistan. The latter theater is the site of the farthest scored hit with an AMR in combat.

The offensive use of anti-materiel rifles or special application scoped rifles (SASR) is termed hard target interdiction (HTI) by the United States military.

Anti-materiel rifles can also be used in non-offensive roles, e.g.; for safely destroying unexploded ordnance.

Design DetailsEdit

Anti-materiel rifles are similar in form and appearance to modern sniper rifles and can often serve in that role, though they are usually chambered for cartridges more powerful than are normally required for killing a human and can operate at a greater range.

The recoil produced by the employed cartridges dictates that these rifles are designed to be fired from the prone position. Bipods and monopods and muzzle brakes are used as accessories to employ these rifles as comfortably and accurately as possible. Firing several 12.7×99mm NATO, 12.7×108mm Russian, or larger caliber shots from the (unsupported) standing position or in a kneeling position would be very uncomfortable for the operator and can result in them being knocked over or sustaining a shoulder injury.

Due to the considerable size and weight of anti-materiel rifles and other support equipment, sniper cells operating in 2- or 3-man or larger teams have become a necessity.

AmmunitionEdit

In general, anti-materiel rifles are chambered for 12.7×99mm NATO (.50 BMG), 12.7×108mm Russian, 14.5×114mm Russian, and 20mm cartridges. The large cartridges are required to be able to fire projectiles containing usable payloads, such as explosives, armor-piercing cores, incendiaries, or combinations of these, as found in the Raufoss Mk 211 projectile.

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