What is the safe separation distance (SSD) when firing blank small arms and machine gun ammunition?

The safe separation distance for firing blank small arms and machine gun ammunition is established to ensure the safety of personnel in the vicinity and to minimize the risk of injury from the discharge of ammunition, even when blanks are used.

The correct answer is based on guidelines that recognize the potential for compression and pressure waves generated when blanks are fired, which can cause injuries at closer ranges. A distance of 5 meters provides a buffer that significantly reduces the likelihood of safety incidents while still allowing operational effectiveness. This distance is consistent with safety protocols designed to protect individuals from the effects of firing, including noise and possible projectile hazards that may arise from malfunction or misfire situations.

This distance would differ from other options because they do not adequately account for the potential risks associated with blank discharges. For instance, options that suggest a shorter distance could compromise safety by increasing the risk of injury due to the effects of the blank rounds, thus making 5 meters the recommended and safest distance for such activities.