The NTW-20 is a South African anti-materiel rifle chambered in 20x82mm, the largest-caliber manually-operated rifle in service. Designed by Denel Land Systems, it can also be chambered in 14.5x114mm Soviet. The 60-inch barrel and two-man crew requirement reflect its role as a vehicle-defeating precision weapon system rather than a conventional sniper rifle. Used by South African National Defence Force. Type: Rifle Action: Bolt-Action Caliber: 20x82mm Capacity: 3 Year introduced: 1998, South Africa Weight: 57.3 oz Overall length: 80" Status: Limited Military use: Yes Intended use: anti-materiel, military