incendiary tracer (APIT) ammunition, the .50 Browning was just as capable in armour penetration and more devastating when igniting thin-skinned vehicles using incendiary rounds than the Boys, and could also serve as an effective anti-aircraft weapon. The heavier Browning, however, was not "man-portable" at without tripod and with tripod. Even the British Special Air Service, which made much use of captured or cast-off weapons for their jeeps and reconnaissance vehicles, quickly got rid of their Boys rifles in favour of M2 Brownings or the Italian 20mm Breda cannon. The weapon was standard issue to British and Commonwealth forces which attempted to stem the Japanese onslaught through the Pacific theatre. At Milne Bay, the weapon proved completely ineffective. It also failed to stop Japanese tanks in Malaya. Some accounts claim that the 1/14th Punjabi Regiment knocked out two light Japanese tanks at a roadblock. During the Battle of Singapore, the 1st Bn Cambridgeshire Regiment claims the Boys was very useful in knocking holes through walls during street fighting. After the war in the Pacific, the gun was used by Royal Malay Regiment to fight against communist insurgents during Malayan Emergency. The U.S. Marine Corps purchased Canadian Boys rifles prior to the attack on Pearl Harbor. They saw limited use by the Marine Raider Battalions against enemy bunkers and aided in the destruction of two seaplanes off Makin Island. The U.S. Army's 1st Ranger Battalion was also equipped with Boys, but they were not used in combat. The other five Ranger battalions were authorized Boys, but were not equipped with them. The Boys rifles were also used by the Chinese Nationalist Army during the late Second Sino-Japanese War in both China and Burma. The Boys rifle was also equipped and used by the Philippine Army and Philippine Constabulary during the Second World War against the Japanese occupation and to aid the Allied liberation. Following the Post-Second World War era, it was operated during the Hukbalahap Rebellion against the Hukbalahap Communist fighters in Central Luzon and by the Philippine Expeditionary Forces to Korea (PEFTOK) against the North Korean and Chinese Communist forces. In September 1965, members of the IRA hit the British fast-attack patrol boat HMS Brave Borderer with a Boys rifle, crippling one of her turbines while she was paying a visit to Waterford, Republic of Ireland. Performance The contemporary training manuals for the Boys directed that it was for protecting the