Center of Mass
You don't fool around with fancy trick shots. Straight to the midsection and down they go. In VATS, you do an additional 15% damage with attacks targeting the torso.”— In-game description, Fallout: New Vegas
When selecting the torso within V.A.T.S., you'll deal +15% damage. This includes all projectile weapons and not exclusively Guns.
Behind the scenes
- In terms of weapons handling, center mass refers to the center of a persons chest or torso, where the mass of their body is the largest, making it the most likely place to score a hit. The center of mass is not only the largest target but also where important organs are, so it's generally seen as the priority target, lacking the difficulty and improbability of a shot to the head.