Is a .50 calliber?

Question

Strong enough to penetrate body armor, and kevlar helmets?

Answer 1

a .50 caliber sot is almost guarnteed to penetrate most body armors - of course a lot of it depends on how far away the target is, the angle that the bullet strikes the target, and several other factors

but yes - .50 caliber shots are also used to penetrate light armored vehicles so i have no doubt that they can penetrate personal body armor