ww2 303 ammo. use or hoard?

[CINDERS]

So does the cordite sticks suffer from time ageing like the primers, I shot some cheap as dirt POF '67 vintage MK VII for a while (5 shoots) any one watching would have thought I was loading black powder rounds and using a flint lock instead of a Mk III hang fires and all the confetti in the world flew out the end of that barrel with the expected resultant expression "Now where did that one go."