A drawing and description of this light case shell and the fuze A.Z. 1502, are included in Pamphlet No. 3.

This is the light-case H.E. shell fitted with the self-destroying fuze Z.Z. 1505 instead of the A.Z. 1502. A drawing and description of the Z.Z. 1505 are included in this pamphlet.

The mild-steel shell is prepared to receive a nose fuze, is fitted with a copper driving band and is cannelured behind the driving band for the attachment of the cartridge case. The interior is designed to form two compartments separated by a disphragm forming part of the body. The diaphragm has a central hole. The front compartment contains a bursting charge consisting of penthrite/wax (approximately 85/15) in the form of a pellet with a cavity to receive the magazine of the fuze at the front end and a cavity to recei-ve the self-destroying unit at the base end. The rear compartment contains the tracing and priming composition and is closed by a disc of aluminium foild held between two steel washers. The self-destroying pellet of H.E. in a metal container is fitted into the hole in the diaphragm from the front and thus leads from the tracing composition to the bursting charge.

The self-destroying H.E. pellet consists of potassium nitrate, potassium picrate and car-bon.

The tracer composition produces a bright white trace and consists of boiled oil, barium nitrate, magnesium and hammerscale.

The priming composition consists of hammerscale, barium peroxide and magnesium.

Fig. 20

GERMAN, 2 CM OERLIKON H.E./T. (S.D.) SHELL

This shell is similar to the yellow, black-banded, shell of the same nature (Fig. 20), but has a larger tracer cavity and a smaller cavity for the bursting charge.

This shell is the same as the yellow, black-banded, shell of the same nature (Fig. 20), but is fitted witht the fuze A.Z. 1504 instead of the A.Z. 1501.

This shell is the same as the H.E./T./S.D. shell but has an incendiary pellet in a cavity formed in the H.E. filling below the cavity accommodating the magazine of the fuze. The fuze A.Z. 1504 is used instead of the A.Z. 1501. A drawing and description of the A.Z. 1504 are included in this pamphelt.

The incendiary pellet is secured in the cavity in the H.E. pellet by varnish and consists of ferric oxide, magnesium, aluminium, zirconium and grease.

The self-destroying pellet, in a brass container, consists of potassium dinitrophenate, potassium nitrate and charcoal. The priming composition in the tracer consists of barium peroxide and magnesium with an organic binding material.

The tracing composition consists of barium nitrate, magnesium, sodium borate and resin.

Fig. 21

GERMAN, 2 CM OERLIKON H.E./I./T. (S.D.) SHELL

The steel pointed projectile is fitted with a sintered iron driving band and is cannelured for the attachment of the cartridge case. The cavity formed in the interior, and contain-ing an inert filling similar to bakelite, is larger for a piercing projectile and is probably de-signed to reduce the weight. The projectile is closed at the base by a light alloy plug. The same projectile is used in the Mauser cartridge as an A.P. shell filled H.E. and as a A.P./I. shell charged phosphorus.

With normal impact at 100 yards the projectile will perforate a 17-mm homogeneous hard plate. With impact at 30 degrees to the normal at the same range the projectile will de-feat a 10-mm plate of the same type.

Fig. 22

GERMAN, 2 CM OERLIKON, A.P. SHOT