New in the house. These blanks really bang loud and cycle very well.
I have just received some of these cases, along with other types of blanks/paint cartridges.
Do you have a picture of a live case?
For the blank, the cartridge on the left is how they look live (on the right, fired.)
These type of cartridges are already some years used for training the Dutch police. They are also (not officially) multifunctional, when you put a fired case under your shoe, you can press the blue part back. Then mix the fired ones with live rounds in a magazine, and change your magazine with another, so nobody know how much fired rounds there are in the magazine, or witch one. We used this way to practise malfunctions too.