If the first round in the time portion of precision registration is spotted as a graze burst, what is the automatic HOB correction?

When the first round in the time portion of precision registration is spotted as a graze burst, the proper action is to make a correction in the height of burst (HOB) to achieve the desired impact. A graze burst indicates that the round is impacting too low, suggesting that the burst is too close to the ground rather than at the optimal height for effectiveness.

In the context of artillery fire support, a graze burst typically necessitates an upward correction to raise the point of impact to the ideal height, which maximizes the effectiveness of the munitions used. The standard correction for a graze burst in this scenario is to elevate the burst by 40 meters, ensuring that the effects of the fire are more accurately delivered to the intended target area.

This detailed understanding of adjustments based on the spotting report is crucial for effective fire support, as it directly influences the success of the mission and the safety of friendly forces in the vicinity. The specific upward correction of 40 meters is a widely accepted standard in precision registration procedures.