Any advantage to storing ammo boxes with assorted ammo inside them?

[Beat Trash]

For a long time, I kept two 50 cal ammo cans set aside from my bulk ammo storage. Each can contained 4x 4-pocket bandolier’s of 5.56, and 4x50 round boxes of 9mm. Packed just right, it left room in the can for 6x loaded aluminum GI 30 rd AR mags to fit on top.

The idea was if I had to leave by car, I’d toss these into to car to augment any ammunition that would be in packs, ect.

ALL the additional ammunition stored was separated by caliber.