Largest working rifle
纪录保持者
James A. DeCaine
地点
美国 (Ishpemimg,Michigan)
打破时间
The largest working rifle is 10.18 m (33 ft 4 in) long and belongs to James A. DeCaine (USA). It was measured in Ishpemimg, Michigan, USA, on 1 September 2008. The rifle fires projectiles using propane and oxygen.