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

When firing inert practice projectiles at soft targets, Area A is not required as it generally pertains to specific safety zones where live ammunition is used and the potential for ricochet or impact-related hazards exist. Inert projectiles, by nature, do not pose the same level of danger as live rounds because they do not contain explosives or hazardous components. This allows for a more controlled environment, meaning that the stringent safety zones associated with Areas B, C, and D, which are designed to mitigate risks associated with live fire, can be reduced or eliminated. Therefore, the absence of Area A in this scenario is appropriate and reflects the understanding that inert projects do not create the same safety risks as live ammunition.