I am hoping that someone can advise me what the new cartridge is that i have.
It was given to me by a friend who recently carried out some work at a disused building - which is used by the police for firearms training.
It appears to be a 5.56mm cartridge, however it has what looks like an aluminium end to it?
The markings on the base are: 556 I V I 03
Anyone know if it is just a new type of blank round - or something different?
(Sorry about the bad picture)