"They knew exactly what they were taking. They were specifically targeting product and got away with rugby jerseys, hunting jerseys and hunting bows," Mr Kerr said.
"I'm still trying to assess how much has been taken."
The store has been targeted before and Mr Kerr said there is CCTV camera footage of the robbery.
"They were wearing balaclavas and hoodies."
Mr Kerr said locals had called him when they heard the store alarm go off.
"And one person chased the burglars down the street too," he said.
"I will find out who was responsible for this."
Yesterday morning Mr Kerr was supposed to be at Manfeild in Feilding, setting up for the Central Districts Field Days instead of dealing with the robbery.
"Dannevirke police have been very good and were here when I arrived."
• If you have information call the Dannevirke police station on 06 374 4500 or Crimestoppers on 0800 555 111.