Frangible bullets are intended to disintegrate into tiny particles upon target impact to minimize their penetration of other objects. Small particles are slowed more rapidly by air resistance, and are
A sequence of photos showing a frangible bullet fracturing when subjected to high velocity strain waves
Expanding bullets, also known as dumdum bullets, are projectiles designed to expand on impact. This causes the bullet to increase in diameter, to combat over-penetration and produce a larger wound, th
Leg wound by an expanding bullet
Composite image of the British Medical Journal article describing Capt Bertie-Clay's new type of bullet (British Medical Journal 1896;2:1810)
German WWI propaganda: French Dum-Dum bullets (c. 1916)
Expanded .458 hunting round (next to a Ugandan 500-shilling coin [23.5 mm diameter] for size reference), after killing an African buffalo