I see that they are just being difficult & anti gun...
Id look into the regs there & if nothing has changed in the time lapsed between your last approval, challenge them--write to them & ask why they are restricting you beyond what the law allows, & has allowed in the past.
I know its a PITA to do, but its these little things that are not challenged, that give them precedence for future decisions & lets themget away with further oppressive decisions.
Keep in mind, they police the law, they dont make & pass law at their desk...!!
Id at least ask a firearms lawyer as well--theyll (good ones anyway) often give you free basic transparent advice & let you know where you stand, without railroading you into opening your wallet.
Also what about SSAA advice if you are a member...?...surely theyd give you some solid advice & backing...!!...wouldnt you SSAA...?!!??!!
You shouldnt be afraid ask them questions in regards to their decision--i feel by NOT asking or putting up a challenge, you are inadvertantly admitting you're not following the law & trying to sneak one past them, & i dont believe you're leaving yourself open to having your firearms taken from you...!!
Rather that is what they are trying to intimidate you (all gun owners) with...!!
Put the onus back on them as to why you are currently allowed to, with their full acceptance & knowledge, safely own & use firearms in this way, yet you cant with another...??...they are putting you on the back foot, for their very own decision making, so, again--make them accountable for their laws & decisions--exposing them & making them accountable for persecution, hippocracy, along with inconsistant decisions that strip you of rights you all ready have, is what us gun owners need...
If i could back you up in any way BLR, & can & will...
Go get em BLR...
Dont be bullied...
The man who knows everything, doesnt really know everything...he's just stopped learning...