Their value lies in their ability to precisely target and disable enemy assets from long range at relatively low cost.
The Mark I could cross ditches up to nine-foot (2.7 m) wide, which made it a major threat to infantry in trench defenses.
Some argued that the smaller cartridge travelled faster and could penetrate deeper into the armor, while others believed that the higher caliber rounds would cause greater damage.
During the Cold War, the Barrett M82 rifle was produced by the United States, and was chambered to fire a .50 BMG (12.7×99mm NATO) round.
As such, modern day anti-materiel rifles are no longer used in an anti-tank capacity, and generally used to penetrate light armor vehicles or for its barrier-blind capabilities against targets behind concrete barricades and buildings; as well as being used to destroy unexploded ordnance.
[1][3] They have seen frequent use in Syria and Iraq as a counter-VBIED weapon system, due to their greater ability to penetrate uparmored VBIED threats that standard rifle calibers used by designated marksmen (typically 7.62×54mmR and 7.62×51mm) are not able to reliably stop.
[3] Despite having been designed to be used against equipment, anti-materiel rifles have also been used for killing soldiers from distances that are beyond the effective range of regular rifle-caliber cartridges.
Anti-materiel rifles can also penetrate most obstacles and building materials, making them viable for engaging targets behind cover that is usually hard enough to stop rifle-caliber cartridges.
[4] The offensive use of anti-materiel rifles is termed hard target interdiction (HTI) by the United States military.