The round is of the fixed Q.F. type and is used with the 7.5 cm anti-tank gun, model 40. The overall length is 36.14 inches and the weight 26.5 lb. The shell is painted black and is noticeably different from the earlier type of A.P.C.B.C. shell in that the ballistic cap is smaller and is cannelure to the head of the penetrative cap. The cartridge case is stam-ped in the base with the designation "7,5 cm Pak 44 Rh" or "Pak 44 Rh", but the side of the case is stencilled "7,5 cm Pak 40".

A.P.C.B.C. shell filled cyclonite/wax (91/9).

Base tracer fute, model 5103*, with adapter and gaine.

Propellant charge of double base composition with igniter.

Case of steel, coated with brass, model 6340 St.

Primer percussion, model C/12 n.A. St.

The shell has a very small cavity for the bursting charge, and is fitted with a driving band of iron covered by copper. A cannelure is formed behind the driving band for the attach-ment of the case. The shell is closed at the base by the fuze. The penetrative cap with the short ballistic cap cannelure to its head forms a coned head. The bursting charge consists of approximately 9 drams of cyclonite/ wax (91/9), and is provided with a short cavity to receive the gaine. The weight of the shell, filled and fuzed, is approximately 15 lb. Metallurgical details are not yet available. The weight of the empty shell without the fuze is 14 lb. 11 oz. 13 dr.

A description of the fuze 5103* with the gaine and adapter used is given in Pamphlet No. 4 on pages 14 and 15. The tracer is similar to that shown in Fig. 25 in this pamphlet.

The propellant charge has a weight of approximately 6 lb. and conisits of tubular sticks 24.6 inches in length, with diameter 0.14 inch external and 0.05 inch internal. The charge is covered from the base for about half the length by a bag which carries an igniter at the bottom. The propellant is of the double base type, and consists basically of nitrocel-lulose and diethylene-glycoldinitrate. The bag is marked "7,5 cm Pak 40, 2,750 kg Digl.R.P. – G1 – 625-3, 8/1, 3".

The case is of steel, coated with brass, and is 26.2 inches in length. The base is stam-ped with the model number "6340 St" and "Pak 44 Rh" or "7,5 cm Pak 44 Rh" instead of Pak 40. This model number and the designation "Pak 44 Rh", with calibre omitted, has ben met with on the case used with 7.62 cm Pak 36 rounds, a case 28 inches in length. Ap-parently the case was designed for a Pak 44 equipment, but is being utilized for the con-verted 7.62 cm Pak 36 and the 7.5 cm Pak 40 equipments. The details of the charge as marked on the cartridge bag are stencilled on the side of 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.