hollow-point bullet中空彈，又名空尖彈

A hollow-point bullet is an expanding bullet that has a pit or hollowed out shape in its tip, often intended to cause the bullet to expand upon entering a target in order to decrease penetration and disrupt more tissue as it travels through the target. It is also used for controlled penetration, where over-penetration could cause collateral damage(such as on an aircraft)
中空彈，又名空尖彈，英文名稱Hollow Point Bullet或Jacketed Hollow Points（JHP），顧名思義是彈頭尖端中空的子彈，在彈頭種類上屬於擴張型彈頭。