How many mils in angular deviation are equivalent to four fingers?

In military practice, particularly in artillery and targeting operations, the concept of "four fingers" is often used as an approximate visual reference for angular measurements. Specifically, four fingers held out at arm's length typically represent about 125 mils of angular deviation.

This method of visual estimation assists personnel in quickly determining and communicating angular adjustments needed for firing solutions. Understanding that four fingers correspond to this specific measurement helps ensure operators can effectively make necessary corrections for target acquisition.

The other values provided do not align with the conventional standard used within military training for four fingers, making the choice of 125 mils the correct interpretation of this visual reference.