Ordnance QF 17 Pounder - Variants

Variants

Mark I

• first production versions.

Mark II

• intended for tank use. Removed the carrier mountings and replaced the muzzle brake with a counterweight. The brake was added back on in March 1944 with the introduction of the APDS shot. The Mk. II was used on the Archer tank destroyer and Challenger tank.

Mark III

• Royal Navy adaptation for use on landing craft, generally similar to the Mk. I, but included an automatic loading system. Unused.

Mark IV

• Another tank adaptation, this time with a different breech where the block slid to the side instead of down to take up less room. Unused.

Mark V

• A version of the Mk IV with different mounts to allow it to replace the US 3in (76.2mm) Gun M7 on the 3in SP, Wolverines, creating the 17pdr SP Achilles.

Mark VI

• Another Mk. IV adaptation with a shortened breech.

Mark VII

• Similar to the Mk. VI, yet another change to the breech.

Straussler Conversion

• This was an experimental gun, designed by Nicholas Straussler that was fitted with a motorized gun-carriage. A modified ammunition limber would be attached to the gun's trails, making a four-wheeled, self-propelled vehicle and removing the need for a truck to tow the gun.