Thats not the problem of the ammo box.
You can empty the magazine and put the ammunition into the box not the ammunition which are stored inside of the cmag or natomag.

Really badly written report with no steps to reproduce.

I had assumed this was working as intended, though its probably not a bad idea to get confirmed.

This should work for you, too:

1. Empty magazine to get the ammo in your inventory.
2. Drag the ammo in the ammo box.
3. Hold ammo box in hands to get the ammo inside the box.

You cant put magazines in the ammo box which is most likely how it is intended.

aah ok thanks alot, did not even find lose bullets untill today yes, should of figured that out myself actually.

Thanks alot again.

P.S.
Spykr, what steps did you want to know to reproduce? should as easy be as get ammobox and stor magazines into it, which i said so in the topic, thanks for the productive reply though, you should take an example from STealthDM or pshot instead of adding negativeness