But the owner of the Teralba property claims he is being unfairly targeted by police and that toy guns he bought at Disney Land, along with spent ammunition from World War I, were among the items taken during the search.

Stephen Dykes said he had sought legal advice and planned to lodge a formal complaint.

Police told the Newcastle Herald just before they left the home at The Weir Road on Wednesday that their investigation was ongoing.

There have been no arrests or charges in relation to the search.

Police said several items, including what they believed to be ammunition, would be tested.

They said the search, which began just after 9am, also uncovered what officers believed to be replica weapons.

Mr Dykes denied any wrongdoing when he spoke to the Newcastle Herald after the search.

He said he received a notice earlier this year that his gun licence had been suspended and that he had to remove firearms from his property - which he said he did.

But he said he believed the Firearms Prohibition Order was issued because he had been trying to have his gun licence re-instated.

Mr Dykes said he believed he had been unfairly targeted by police for the past three years.

The Herald contacted NSW Police for a response to Mr Dykes' claim of unfair treatment.

"On Wednesday 12 June 2019, Lake Macquarie detectives and officers attached to Operation Utah attended a home on The Weir Road, Teralba for the purpose of issuing a Firearms Prohibition Order and spoke with a 61-year-old man," a statement said in response on Wednesday afternoon.

"During the search, police located and seized a number of items, including ammunition and two replica rifles. Investigations are ongoing," the statement said.

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