I can easily clarify one point, there is absolutely no difference in Firearms Licensing between different parts of the UK for the simple and sufficient reason that there is no such thing as firearms
licensing anywhere in the UK. Sorry about being a stuck record on this, but nowhere in the relevant legislation will you find the words
licence or
licensing, regardless of how much the public servants in the Home Office or police officers might wish there was. We have certificates, not licences, and while the difference might be subtle, it is significant. A licence means that you have been granted permission, a certificate acknowledges that you have met the legislative requirement to exercise your right to possess / use the specified firearms.
Look at the legislation:-
27 Special provisions about firearm certificates.
E+W+S
[F1(1)A firearm certificate shall be granted
28Special provisions about shot gun certificates.
E+W+S
[F1(1)Subject to subsection (1A) below, a shot gun certificate shall be granted
Note the use of the verb "shall", not "may" . . .