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26 in increasing numbers. Each calibre is divided into several types, e.g. armour-piercing, tracer, incendiary-with combinations of these in one projectile. In addition, there are rounds with a very sensitive



self-destroying nose or base fuze. A sketch of a 20 mm. cannon shell is given in Figure 33.

'''Ammunition must be handled with the greatest care and not tampered with in any way, whether it is complete with cartridge case or not. All types are potentially dangerous and some rounds are particularly so; even if damaged, or recovered after being fired, they are still liable to function with the slightest shock. The characteristics of these most dangerous types are shown in Appendix "B."'''

(N.B.-It is no longer practicable to include, as in the first edition of this Training Pamphlet, an exhaustive list of all the many varieties of the types of each calibre now used by the enemy.)

7. GERMAN AMMUNITION CONTAINERS

The standard German 7 92 mm. machine-gun magazine of the spectacle type is illustrated in Figure 34. It is about 10 in. long, 4 in. high; usually has a handle as shown in the illustration and carries about 75 rounds. The ammunition container on the right of the picture