Hollowpoints

Overview
The Hollowpoints perk allows the user to do 15% more damage with any weapon, both melee and ranged. It's also possible that it also heals the user at 1.15 health per second with the Medpack but this is unconfirmed. This perk is less effective than the Specialist but it still allows the user to carry 4 items rather than 1, making it more popular.

Trivia
Although Hollowpoints are a special type of bullet, the perk does augment both melee weapons and Grenades as well, rather odd as they don't actually shoot bullets (or anything really) but it was probably ignored for gameplay sense.