Unknown 4.85mm experimental Purple Tip

Hi Folks,

In my collection I have a British experimental 4.85x49mm round with a purple tip (the code for experimental ball rounds) and a green laquered ring on the base.

What is the meaning of the green ring? Was it a propellant test or a test for a different primer or something else?

thanks in advance,

I have the same and I was told it was a tracer experimental. An x-ray showed nothing.


Latest info I’ve gotten on the round is that it is some form of experimental ball loading, but no info on the specific test or significance of the tip or base colors. At least it looks pretty.