This Q.F. fixed round is used in the 7.5 cm anti-tank gun model 41. The overall length of the round is 28.8 inches and the weight 17 lb. 2 oz. The exterior of the shell, except the skirts is painted grey green on an undercoat of red. The edges and forward faces of the skirts appear to be treated with a graphitic coating, posibly to function as a lubricant.

A.P.B.C. shot with tungsten carbide core and tracer.

Case stamped with the model number 6344.

Propellant charge of double base composition with igniter.

Primer percussion C/12 n.A. St.

The total weight of the shot is 5 lb. 11 1/4 oz. It consists of a soft iron or steel body, a tungsten carbide core, and a ballistic cap with black plastic material between the cap and the core.

The body is in one piece with two collapsible skirts. The rear skirt is cannelured for the attachment of the case, and the forward skirt has 10 equidisant holes in it, each ap-proximately 0.25 inch in diameter. Immediately in rear of the forward skirt the body is re-duced in diameter. The body is bored centrally in two diameters to receive the core and tracer respectively and provided with a central hole for the escape of air when assemb-ling the core. The hardness of the body is 90 to 110 V.D.H. with the exception of the tip at the forward end where, probably due to cold work, the hardness increased to 140/150 V.D.H. The density is 7.81 gm. per c.c.

The tungsten carbide core weighs 2 lb. and its density is 15.25 gm. per c.c. The core is coated with white paint before assembly, apparently to ensure a tight fit when pressed into the body. The nose of the core is embedded in a black plastic material which fills the space between the nose and the ballistic cap.

The steel ballistic cap is secured by turning the forward end of the body over its base to form a cannelure. Two holes are provided for the escape of the excess plastic during this operation.

The tracer weighs 9 1/2 drams. The body is of steel and is screwthreaded for insertion in the shot. The tracer composition is contained in a brass plated steel cup secured by tur-ning over the lip of the body.

The propellant charge weighs approximately 5 lb. 11 oz. and consists of tubular sticks of Digl. type in two lengths, 16.55 inches and 18.5 inches long respectively. The longer sticks weighing approximately 4 lb. 6 1/2 oz. are contained in a white stocking bag tied at the top, the shorter sticks surround the bag and are not tied. The stocking is in two parts, stitched in the middle, and an igniter is sewn at one end. The stocking is centred by one or two cardboard washers, approximately 2 inches in internal diameter, at the top of the case.

Digl. RP - G 1,5 (

420
490

Case

The case is of steel coated with brass, and is 21.4 inches in length. The base is stamped "7,5 cm Patrh. (6344) Pak. 41" and stencilled in White "Pzgr. 41 H.K.". The case examined was not stamped "St" as is usual with German steel cases. The details of the charge are marked on the bag are stencilled on the case.

The percussion primer C/12 n.A. is described in Pamphlet No. 4, page 10. The letters "St" added to the designation indicate that the primer is of steel.