Equipment scales : For guns, machine, Bren .303-inch, Mks. I and II : issued by technical scale and S.R. section, M.G.O. branch, G.H.Q (I) Army extension courses. Special text : Machine guns / prep. under the dir. of the Chief of Cavalry for use with the Extension Course of … Machine-gun mathematics : (applicable also to howitzer company) 303 Inch Vickers machine gun / by command of the Army Council, War Office field manual Antiaircraft artillery : markmanship and service of the piece : antiaircraft machine gun / prepared under direction of the chief of coast artillery field manual Browning machine gun caliber .30, HB, M1919A4 (mounted in combat vehicles) / prep. under dir. of the Chief of Infantry field manual Browning machine gun, caliber .30, M1917 Machine carbines and appurtenances : section B 3 Handbook for the 303" and 303" converted Maxim machine guns (magazine rifle chamber), mounted on carriages, M.G., infantry; carriages, parapet : tripod and cone mountings … Machine gun training : provisional machine gunners handbook : including the Vickers and Lewis automatic machine guns / J. Bostock For carbine, machine, sten, 9 mm, mark 5 : section B 3