Dear Mr Simon - I'm sorry indeed that I come over as a condescending and prissy ar$e, but it seems to me that pouring a comparatively large amount of highly-explosive powder down a barrel that many have just been fired, whilst at the same time holding a partially-sealed container of the stuff over the same barrel, is quite a dangerous thing to do.
Please watch the video at 1:41. http://www.youtube.com/watch?v=SEB7gYZ-JmE
Condescending I might be, and prissy arse, probably, but you'll note that I did not call you a gloontrumpet for asking such a bone question in such a peremptory manner. Usually, one word questions to me get one word responses. You were lucky.
Best wishes
tac, formerly from the now-demolished barracks just up the road from you.