Sorry to bother you all again, but I am going through a batch of cartridges and have run across a cartridge with the above headstamp. I have never heard of a 433 if that is what this is.
At first I thought this was a blank because the case is crimped at the mouth very similar to modern day blanks or grenade blanks.
However, when I shake this thing it sounds like there is shot rattling on the inside.
What do I have here?
Thank you for any information.