2 pdr Anti-Tank Gun

2 pdr Anti-Tank Gun

The 2 pdr Anti-Tank Gun was formally approved on 1 January 1936 and by 1939 it was in service in some numbers, but was fast approaching the end of its useful service life. In 1940 more than 500 of these guns were left behind in France, but in order to rapidly equip the army it remained in production for another year, rather than introduce the new 6 pdr gun. After the summer of 1942 the gun was replaced in Anti-Tank Regiments by the 6 pdr. It remained in service with the infantry and some were issued to the Home Guard. The gun also remained in service with RA units in the Far East as its performance was quite capable of dealing with Japanese tanks. It was made obsolete in December 1945.


Mark 9Original design with auto-frettaged barrel
Mark 9AApproved 1940 to speed up production. As Mark 9 but non-auto-frettaged
barrel & some tolerances relaxed
Mark 10Approved 1936. As Mark 9 but of higher grade steel. Non-auto-frettaged
Mark 10AAs Mark 10 but dimensional tolerances relaxed
Mark 10BAs Mark 10A but fitted for Littlejohn muzzle adaptor. This was a
squeeze-bore attachment with skirted projectile


Mark 1Vickers design
Mark 2Royal Arsenal design & most common during the war


No.1Detachment Commander
No.4Ammunition supply
No.5Ammuntiion supply


Weight of gun & breech mechanism287 lbs
Total Length81.95 inches
Length of bore78.75 inches
Rifling12 grooves, uniform, right hand, 1/30
Breech mechanismVertical sliding block, semi-automatic, percussion fired
Elevation-13° to +15° on platform; -5° to +23° on wheels
Traverse360° on platform; 14° left & 10° right on wheels
Recoil systemHydro-spring, constant, 20 inches
Weight in action1.757 lbs


Firing standard 2 lb AP shot

Muzzle velocity2,650 feet/second
Maximum range8,000 yards
Penetration42mm/1,000 yards/30°


Fixed, cased charge

Shot armour piercing Mark 10TSolid steel, 2 pound with tracer
Shot armour piercing cap ballistic cap Mark 9BTSolid shot with penetrative & ballistic caps & tracer
Shell armour piercing Mark1Piercing projectile with small filling of Lyddite. Withdrawn when base fuze tended to part company with the shell on impact. When successful, no better than plain steel shot
Shell high explosive Mark 2TPointed shell with small filling of TNT. Base percussion fuze No.243. Not apparently issued to tanks
Propelling charge
Brass cased, weight varied with type of projectile & propellant powder. Typically between 9 & 10 ounces
The Royal Artillery 1939-45