British bolt-action anti-tank rifle. Effective against early-war light armor but obsolete by 1942 as German tank armor thickened. Heavy and with severe recoil. Still useful against APCs and light vehicles. Type: Anti-Tank Rifle Action: Bolt-Action Caliber: .55 Boys Capacity: 5 Year introduced: 1937, United Kingdom Weight: 369 oz Overall length: 63.5" Status: Discontinued Military use: Yes Intended use: military