Règle correspondante
Italy
Practice Relating to Rule 78. Exploding Bullets
Italy’s IHL Manual (1991) states: “It is specifically prohibited … to use explosive or incendiary projectiles of a weight below 400 grammes, except for air or anti-air systems.” 
Italy, Manuale di diritto umanitario, Introduzione e Volume I, Usi e convenzioni di Guerra, SMD-G-014, Stato Maggiore della Difesa, I Reparto, Ufficio Addestramento e Regolamenti, Rome, 1991, Vol. I, § 8(5).
Italy’s Law of War Decree (1938), as amended in 1992, provides: “It is prohibited … to use explosive or incendiary projectiles of a weight below 400 grammes, except for air or anti-air systems.” 
Italy, Law of War Decree, 1938, as amended in 1992, 1938, Article 35(5).