Expanding bullet

Expanding bullets, also known colloquially 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, thus dealing more damage to a living target. For this reason, they are used for hunting and by most police departments,^[1] but are generally prohibited for use in war.^[2] Two typical designs are the hollow-point bullet and the soft-point bullet.