The Pilum: The Roman Heavy Javelin (osprey Weapon 55)
Tags: M.C. Bishop, Peter Dennis

A heavy javelin, normally used as a shock weapon immediately before contact, the pilum was designed with a particular speciality: it could penetrate a shield and carry on into the individual behind it. Relying on mass rather than velocity, at short range a volley of pila had much the same effect on a charging enemy as musketry would in later periods. The design was not uniform, with a wide diversity of types throughout the developmental history of the weapon, but for more than four centuries it remained a vital part of the arsenal of weapons at the disposal of the Roman legionary.