Case Box, 5.56mm

 is a type of miscellaneous item in Fallout: New Vegas.

Characteristics
Case Boxes contain cases used in crafting the type of ammo on their label. Each box contains 25 case, 5.56mm.

Bugs
Sometimes the cases are not added to your inventory; this can be remedied by dropping the box on the ground, then picking it back up.
 * This bug has been fixed in the 1.2.0.31x patch.