I disagree. The law is quite clear. Different provisions allow you to share rifles and shotguns on land you control ('estate exemption') or at approved clubs, but they do not extend to long-barrelled handguns or S1 shotguns. Long-barrelled handguns aren't rifles, they're handguns with long barrels. There's an urban myth that "they're legally carbines" but that's absolute nonsense: they're not, they're handguns. None of the 'sharing exemptions' apply to handguns. The wording in sharing provisions was explicitly changed from 'rifled' to 'rifle', for example, in 1997 because it was at that time envisaged that all handguns were banned and long-barrelled one's hadn't come into being at that stage. I agree that preventing haring wasn't intentional, because Parliament didn't know long-barrelled handguns would become a thing, but despite not being intentional, it's very much what the law states.