Related Rule
Sierra Leone
Practice Relating to Rule 78. Exploding Bullets
Sierra Leone’s Instructor Manual (2007) provides: “It is prohibited to … [u]se weapons that can cause unnecessary suffering, e.g. exploding bullets or bullets that expand or flatten easily in human body to increase suffering.” 
Sierra Leone, The Law of Armed Conflict. Instructor Manual for the Republic of Sierra Leone Armed Forces (RSLAF), Armed Forces Education Centre, September 2007, p. 44.