In the UK, if a firearm is classified as a Section 1 firearm ( can't remember what the criteria are ) then you can't even have the ammunition and the weapon in the same place, albeit in separate containers, until you arrive at the firing range. For example, if you're travelling by car to a shooting competition, you'll need two cars - one for the weapons and one for the ammo. To do otherwise is a CRIMINAL offence ( my emphasis ).
This has been the case for a long time - and in the US, I only talk about gun control if I know the person I'm speaking to REALLY well - it's a tad too emotional otherwise.