Note 189 — Chapter III · CAMPAIGN AGAINST THE HELVETII. (Year of Rome 696.) (Book I. of the “Commentaries.”)
Reading edition
The pilum was a sort of javelin thrown by the hand: its total length was from 1·70 to 2 mètres; its head was a slender flexible blade from 0·60 to 1 mètre long, weighing from 300 to 600 grammes, terminating in a part slightly swelling, which sometimes formed a barbed point.
The shaft, sometimes round, sometimes square, had a diameter of from 25 to 32 millimètres. It was fixed to the head by ferules, or by pegs, or by means of a socket.
Such are the characteristics presented by the fragments of pila found at Alise. They answer in general to the descriptions we find in Polybius (VI. 28), in Dionysius (V. 46), and in Plutarch (Marius). Pila made on the model of those found at Alise, and weighing with their shaft from 700 grammes to 1·200 kilog., have been thrown to a distance of 30 and 40 mètres: we may therefore fix at about 25 mètres the average distance to which the pilum carried.