The slinging would impart a spin on the projectile, giving it a certain degree of stability in flight. The stability made the path of flight more predictable, and if it stabilized point-first, it penetrated better.
The slinging would impart a spin on the projectile, giving it a certain degree of stability in flight. The stability made the path of flight more predictable, and if it stabilized point-first, it penetrated better.
And look! Rifling marks!