Why does the military call the 5 charges on the fins of the 81mm mortar, cheese?

When I was in the military and was assigned to the mortor platoon we used to fire lots of 81mm mortars. There were 5 small charges on the fins of the round, and these were referred to as cheese. Why were they called cheese ?Why does the military call the 5 charges on the fins of the 81mm mortar, cheese?maybe cuz they were the size of cheese blocks? I dunnoWhy does the military call the 5 charges on the fins of the 81mm mortar, cheese?They resembled cheese slices in shape and color. These charges could be torn off before firing depending on the range to the target.Why does the military call the 5 charges on the fins of the 81mm mortar, cheese?mortar rounds have what are called charges attached to their base. Most have what look like donuts wraped around the base of the round. Others, like on rounds for the 4.2 mortar look like Kraft cheese slices. Range on a mortar can be adjusted through either adding or removing charges, or by adjusting elevation on the bipod. Different mortars tend use one of these methods more than the other.