West Coast police area commander Inspector John Canning says he fears that a cache of firearms stolen from Inchbonnie on Sunday could be in the "wrong hands".
Five rifles were stolen from a locked cabinet some time between 5am and 11am.
"We are taking this theft very seriously, and we are looking at the type of security used for the guns and the house and where they were being kept," Mr Canning said today.
Police were unsure whether the burglary was "targeted or opportunist".
"No matter what, it was not the standard sort of burglary."