sentences:  Thus its ammunition lacks stabilizing tailfins common to most mortars.The mortar's M3 high explosive (HE) shell packed 3.64 kilograms of explosive charge, placing it between the M1 105-mm HE shell (2.18 kilograms of charge) and M102 155-mm HE shell (6.88 kilograms of charge) in terms of blast effect.The mortar could also fire white phosphorus-based smoke shells and mustard gas shells.