Handbook of Enemy Ammunition, Part 5; German 2-cm Cartridges

HANDBOOK OF ENEMY AMMUNITION

PAMPHLET No. 5

GERMAN SMALL ARMS AMMUNITION, GREANDES AND
DEMOLITION CHARGES

OERLIKON TYPES

Cases and Caps

The case is necked and is of the rimless type with the usual cap camber with anvil and two flash channels formed in the base. Cases may be of brass or steel, the steel type being lacquered internally and externally.

The cap annulus with all types is black.

The brass cap contains a 2.35 grain charge covered by a foil disc and consisting of mer-cury fulminate, potassium chlorate, antimony sulphide and glass.

Propelland Charges

The propellant is in the form of graphited flakes of nitrocellulose powder and consists basically of approximately 95 per cent of nitrocellulose (Nitrogen content 13.25 per cent) with diphenylamine and diethyl diphenylurea. The approximate dimensions of the flakes are 0.05 inch square and 0.013 inch thick.

Natrue and Fuze	Projectile markings		Projectile Weights		Propellant N.C. Flakes	Trace Colour	Cartridge Wt.	Fig. No.
	Body	Bands	Filling	Total	Propellant N.C. Flakes		Cartridge Wt.
	Body	Bands	Filling	grains	grains		grains
Ball	Oilve green	None	None	2053	225.5	None	3066	17
Tracer	Olive green	Yellow above driving band with mauve above	None	2053	225.5	White bright	3066	18
Tracer	Olive green	Yellow above driving band. White on nose with 3 arrows stamped in band	None	2094	225.5	Pale green	3107	19
H.E. A.Z. 1502 or H.E. (S.D. Fuze) Z.Z. 1505	Yellow	Black below fuze	262 grains P.E.T.N./Wax	1385	225.5	None	2398	––
H.E./T. (S.D.) A.Z. 1501	Yellow	Black above driving band	57 grains P.E.T.N./Wax	2080	225.5	Yellow bright	3093	20
H.E./T. (S.D.) A.Z. 5045	Unpainted steel	White above driving band	49 grains P.E.T.N./Wax	2080	225.5	White bright	3093	––
H.E./T. (S.D.) A.Z. 1504	Yellow	None	57 grains P.E.T.N./Wax	1844	202	––	2834	––
H.E./I./T. (S.D.) A.Z. 1504	Yellow	Blue at centre of body or below fuze	55 grains P.E.T.N./Wax 6 grains incen- diary composi- tion	1742	225.5	Pale green	––	21
A.P. Shot	Black	None	72 grains Inert plastic	1784	225	None	2773	22

Ball (Fig. 17)

The steel projectile has a flat-nosed ogival head, is fitted with a copper driving band and is cannelured behind the driving band for the attachment of the cartridge case. A cylin-drical cavity formed in the shot is closed at the base by a plug which is driven in against a shoulder formed in the cavity wall.

Fig. 17

GERMAN, 2 CM OERLIKON BALL

Tracer Shell (Figs. 18 and 19)

The steel projectile is fitted with a steel, flat-nosed ogival plug in place of a fuze. A can-nelure is formed behind the copper driving band for the attachment of the cartridge case. Two cavities formed in the interior of the projectile are separated by a diaphragm formed in the body. The front cavity is empty. The rear cavity contains pressings of tra-cer and priming composition and is closed at the base by a disc of aluminium for held between two steel washers.

The followings markings and traces have been reported:–

Mauve and yellow bands above the driving band, white bright trace.

Yellow and white bands above the driving band, white bright trace.

Yellow band above driving band and white band on nose plug with three vertical ar-rows stamped in white band, bright white trace.

Yellow band above driving band, pale green trace.

Fig. 18

GERMAN, 2 CM OERLIKON, TRACER BALL

Fig. 19

GERMAN, 2 CM OERLIKON TRACER SHELL