bewbs kill shills
In DC you have to register every box of ammo you have, if you have one bullet with you that is not registered you are going to jail.
Do not bring firearms to DC.
not lying bro, I just finished a concealed carry course in VA and had an extensive conversation with an LEO on the subject
https://mpdc.dc.gov/page/general-requirements-firearms-registration
You have to be a registered gun owner in DC and can have ammo specific to that registered firearm. The registration of the ammo is tied to the firearm.