How do you determine the number of turns per interval with the M224 or M252?

To determine the number of turns per interval with the M224 or M252 mortars, the correct method involves converting the length you need to adjust in mils into a corresponding number of turns. Specifically, dividing the length in mils by 10 provides a straightforward way to calculate the adjustment needed.

The rationale behind using this calculation stems from the mechanics of the mortar's sighting system, where one complete turn of the elevation or traverse mechanism typically corresponds to a set adjustment based on the mil measurement. Since there are 10 mils in one turn for the M224 and M252 configurations, taking the length in mils and dividing by 10 effectively translates the angular measure into a linear adjustment that can be directly applied to the mortar's aiming system.

Alternatives provided do not follow the established relationship between mils and turns. For instance, length in mils divided by 5 would inaccurately represent the adjustment, as it presumes a different proportional relationship that does not align with the mechanics of the mortar system. Similarly, dividing length in meters by 30 does not correctly relate to mils or the specific adjustments needed for turns, and multiplying length in mils by 10 would result in an inflated value that cannot be realistically used for