What SDZ areas are not required when firing inert practice projectiles at soft targets?

The correct answer is based on the understanding of the safety zones associated with inert practice projectiles. When firing at soft targets, certain Surface Danger Zones (SDZ) are established to ensure safety for personnel and equipment in proximity to the firing area.

Area A typically encompasses the main impact zone where projectiles land, while Area B is often designated as a safety buffer surrounding the primary impact zone. Since inert practice projectiles do not have the same destructive capabilities as live ordnance, the necessity for a broader range of safety areas is reduced.

This means that when the projectiles being fired are inert and designed for soft targets, the requirement for Area A and Area B may not apply to the same extent as they do in live fire scenarios. Areas C and D involve considerations for ricochet or over-pressure effects, which are less of a concern with inert projectiles, allowing for a more focused safety protocol without the necessity of these broader zones.

Overall, the lack of requirement for Areas A and B when dealing with inert projectiles reflects the reduced risk involved and enables a more streamlined approach to range safety procedures.