None of the British stuff has a green tip, as the Brits never used the 55gr. stuff. Therefore, there is no need for a green tip to distinguish it. If the ammo is around 62 gr. (the brits aren't know for their quality control), and it is boat tailed, the stuff MAY be real. If a magnet will not attract it that is troublesome, but the real SS109 only has less than 20% steel content.