Bolt removed, I am guessing same reason as 'action broken' - just safety I suppose?
Bit of confusion... http://myshootingjourney.com/2015/09/23 ... -strorage/
As for the cocked vs uncocked because of springs, no harm in storing cocked. Rifles are stored cocked for decades, it's fine.
edited:
in VIC - no such requirement, however I store mine with bolts out purely because they won't fit in the safe otherwise