What is it about a bullet that increases armor penetration?
The bullet is shot out of a barrel of a gun coming at you full speed so therefore it penetrates your BULLET PROOF VEST and may hurt a little too OUCH....
FMJ- Full Metal Jacket.
The smaller the point on a projectile the greater likely hood of penetration trough the Kevlar weaves! That why they stop bullets but not an ice pick!
Speed, weight=penetrating power!
Tunsten steel 55 cal boys anti tank gun that's a whole lot of hurt