Because of the size of the effects pattern for ICM, deviation shifts of less than 50m and range corrections of less than 100m should not be made.

• A. False
• B. Only deviations should be avoided
• C. True
• D. Only range corrections should be avoided

Answer: (C)

The idea being tested is how the size of the ICM effects pattern guides when corrections are worthwhile. When the effects pattern is large, small observed deviations are likely just normal dispersion rather than real aiming errors. If deviation shifts are less than about 50 meters and range corrections are less than about 100 meters, those adjustments fall within the pattern’s natural spread and won’t meaningfully improve accuracy. Trying to adjust for such small differences can lead to over-corrections and wasted time. Therefore, no correction should be made for those tiny shifts, and only larger deviations that exceed the pattern’s spread should prompt adjustments. This is why the statement is true.