Fifty caliber and larger ammunition with explosive-filled projectiles are assigned to which risk category?

Fifty caliber and larger ammunition with explosive-filled projectiles are classified as Category III risk because this category pertains specifically to ammunition and explosives that have potential for detonation or significant injury if mishandled. Category III includes items that can cause significant damage or harm due to their explosive nature, and items in this category are subject to strict handling, transportation, and storage regulations to ensure safety. The explosive-filled projectiles represent a higher risk due to their capacity to cause catastrophic effects upon detonation, making it essential that they are managed according to the guidelines set forth for Category III materials.

Other categories address different risks and types of materials, but they do not encompass the same level of threat posed by explosive ammunition of this size and type.