When I got my FAC 5 years ago there was no mention of a box to store smokeless powders, black powder yes, pyrodex no, because smokeless and pyrodex are NOT explosives, they are propellants, well that's what my firearms officer told me and everyone else I know who shoots black and reloads smokeless
Same here,

Err......what part of the "Explosive Regulations 2014", page 100, do you not understand?????? Or do you have some special exemption?

I would say, to anyone who has any doubt as to whether they need to rethink how they store Shooters Powders, download, read & inwardly digest, the HSE Explosive Regulations 2014. (or just read my post #10)
hope all the reloaders out there know this