This paper attempts to study the effect of the impact of a paraboloidal projectile on human skin membrane. The tip of the projectile (i.e., the bullet tip) has been considered to be paraboloidal and is made of lead or steel. The threshold velocity, i.e., the velocity when the skin membrane is about to rupture has been calculated for human beings of various age groups. The threshold velocity for a paraboloidal projectile of certain dimensions has been found, for all age groups, to be less than that of a spherical projectile under similar conditions.