That was your second question, Brian. Tougher, that one.
Edit: I mean, we don't seem to have the trade on our side; by and large, they are happy with the way things are.
Edit 2: I wrote to the Home Office about this and also engaged my local MP at the time of the cases mentioned above; all I got back was a fatuous reply that it was the responsibility of the rifle owner to make sure that the kit complied with the law. The concept of elastic goal posts placed in shifting sand was ignored, or not understood.