5.56mm x 45mm British Drill round used to do classroom rifle drills and instruction. Any 5.56mm rifle will take these so M16/M4. SA80 L85 etc.. These are new.
I have had to alter my description of these items for the hard of thinking, as some of you out there thought you could buy a complete drill round for .06p . I know of nothing in any retail shop that is priced as low as .06 pence maybe in the 1970s I could buy 6x 1penny chews . I would probably get more in scrape as the case is brass and the head is cooper and lead .
