The blokes who come up for our annual Victorian shoot seem to be able to bring in plenty of powder and loaded ammo. (Snider, M-H and such)
I don't think they're restricted to just a pound of powder, in fact I know they aren't, but they drive up. Maybe that makes a difference.
They use different powder in different guns, so carry from 4F for matchlock prime, down to 1F for musket match.
Re the guns, I'm hazy, but they do need a list to show, and usually bring up at least 6 each.
They also bring the printed off shoot schedule to show.
No bothers up to now, and we've held the shoot maybe 12 years running. Maybe more I forget.
Richard.