JHP

A Jacketed Hollow Point, or JHP, bullet is a bullet designed to expand when it enters its target. The bullet's nose, rather than being pointed, is recessed (hence "hollow point"). When a JHP bullet penetrates soft tissue, the lead around this cavity is forced outward, causing the bullet to "mushroom," widening its diameter and resulting in a wider wound channel. However, the hallow cavity makes for a very poor armor penetrator, as the hallow cavity will cause the bullet to flatten pre-maturley upon hitting an hardened target, causing it to minimally penetrate. In Fallout and Fallout 2, this is reflected by having JHP bullets do more damage to a target than a FMJ round, but having sub-par armor penetration. This means that although you may hit a target for a large degree of damage, the target's armor may very well absorb a great deal of, if not all, damage.