A Soldier observes two enemy riflemen moving into completely concealed positions, one behind a bush and the other into a depression.
• By selecting a point of aim on the bush, the Soldier should hit the enemy rifleman even though he can’t see him. If the target cannot be engaged, the point of aim also allows for quick and accurate engagement once the target is re-exposed.
•The enemy rifleman who moved into the depression provides no distinguishable point of aim, so the Soldier must select a nearby feature as a reference point and determine its distance and general direction from the depression. A reference point provides a general point of aim on a concealed target.
Of the two, a point of aim is usually the more effective means of delivering accurate fire. The difficulty in using reference points to mark targets moving from one location to another depends on the following factors:
• Number of targets.
• Exposure time to target.
• Spacing of targets.
• Good and poor points of aim.
1. NUMBER OF TARGETS - If several targets appear and disappear at approximately the same time, it is very difficult to note each target's point of disappearance.
2. EXPOSURE TIME OF TARGET - Usually, moving targets are exposed for only a short period of time, so the observer must be alert to note the point of disappearance for all of the targets. In such situations, the Soldier should mark the location of as many targets as possible before engaging any of them. By doing so, he will know the location of several targets and can engage each of them in rapid succession.
3. SPACING OF TARGETS - The greater the interval between targets, the more difficult it is to note each target's movements. When there is considerable distance between targets, the observer should accurately locate and mark the one nearest to his position and note the general area of the others.
4. GOOD AND POOR POINTS OF AIM - Good points of aim are easily distinguishable in the surrounding terrain. Targets disappearing behind good points of aim, such as manmade objects and large terrain features, can be easily
marked for future reference. Poor points of aim are not easily distinguishable within the surrounding terrain. "Targets disappearing behind poor points of aim are difficult to mark accurately and are easily lost." If two targets offer the same degree of danger to the Soldier, but one disappears behind a good point of aim and the other behind a poor point of aim, the Soldier should "mark the location of the target behind the good point of aim and engage the other target first."