The Metal Storm prototype can fire a million rounds per minute Hopes of an order from the US military have sparked a 50% surge in the shares of Metal Storm, the Australian maker of the world's fastest gun. The five-day rally has prompted probes at the Nasdaq and Australian Stock Exchanges where the company is listed. But the firm's general manager, Ian Gillespie, said excitement had been fuelled by a recent US and UK roadshow. The US Defense Department is... (GunPolicy.org)