Triple Sigh. Now your just being silly.
I think most people can tell the difference between normal situations and a shooting range or a clay pigeon shoot. I think the number of occasions that the police have been called by people who find themselves on shooting ranges about the presence of firearms are very small.
In 99% of the rest of the country however.
I think I can also tell the difference between a shotgun and say a pistol, thank you very much. However if someone went up the high street with a shotgun on there shoulder i think there would be reason to call the police. I also seriously doubt that people walk from the car park to a clay pigeon shoot carrying loaded shotguns. The bar is so high on owning such weapon, that such people know how to carry them responsible.
The list of scenarios where it's appropriate to call the Police because a non-uniformed individual is in possession of a firearm is actually quite short.
Actually on your basis The list of scenarios where it is appropriate for a non-uniformed individual is in possession of a firearm is actually quite short. Apart from your definitions I cannot think of any other occasion where an armed individual is not considered a potential threat.
The point is the UK has a different mindset to firearms. They cause attention, which if you are a criminal is unwanted.