The Japanese closed to a minimum of about 5,000 metres ( 5,500 yd ) .
Kamimura then opened the range up to 6,500 metres ( 7,100 yd ) .
The Japanese closed to a minimum of about 5,000 metres ( 5,500 yd ) , but Kamimura then opened the range up to 6,500 metres ( 7,100 yd ) .