A friend of two farmers found dead at a property in regional Victoria says the men didn't make enemies and went out of their way to help people.

Sheep farmers Douglas and John Streeter, both aged in their 60s, were discovered by a family member about 6pm (AEDT) on Thursday.

Police say there is nothing to indicate the deaths are a murder-suicide.

Homicide detectives are on the scene in Natte Yallock, about 200km northwest of Melbourne.

Robert Vance, a councillor and former mayor of the local Pyrenees Shire council, has known the men all his life and said he is struggling to understand what happened.

"It is just beyond belief," he told AAP.

"I just cannot put any sense to it whatsoever.

"They don't make enemies. They are not those sort of people.

"They go out of their way to help people."

Mr Vance said locals are in a state of disbelief.

"I guess time will bring the truth out," he said.

"It is just so hard to understand at the moment."

Mr Vance said he had known the men all his life and had done national service with Douglas in the late 1960s.

The men were farmers and the family had bred Merino sheep in the area for at least three or four generations, he said.