Expanding bullet

Expanding bullets are bullets that expand (grow bigger) when they hit something. They are outlawed in war.

Expanding Bullet Media

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  Drawings from 1870 of a hollow point express rifle bullet before firing (1, 2) and after recovery from the game animal (3, 4, 5), showing expansion and fragmentation

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  Composite image of the British Medical Journal article describing Capt Bertie-Clay's new type of bullet (British Medical Journal 1896;2:1810)

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  German WWI propaganda: French Dum-Dum bullets (c. 1916)

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  Expanded .458 hunting round (next to a Ugandan 500-shilling coin [23.5 mm diameter] for size reference), after killing an African buffalo