Makers say bullet twists and turns in flight, making up to 30 corrections per second, as it guides itself towards target

This article is more than 8 years old

This article is more than 8 years old

Engineers in the US have invented a bullet that directs itself to a target like a tiny guided missile and can hit a target more than a mile away.

According to Sandia National Laboratories engineers, the bullet twists and turns to guide itself toward a laser-directed point. It can make up to thirty corrections per second while in the air, officials said.

Sandia technical staff member Jim Jones said he thinks the .50-calibre bullets would work well with military machine guns, so soldiers could hit their mark faster and with precision.

"We've tested gunpowders to see if we can get muzzle velocity for military interest," Jones told KRQE-TV.

Testing has shown the bullet can reach speeds of 730m per second. Researchers said they were confident the bullet could reach standard military speeds using customized gunpowder.

Computer simulations showed an unguided bullet under real-world conditions could miss a target more than half a mile away. But according to the patent, a guided bullet would get within 20cm.

Sandia Labs said the design for the bullet includes an optical sensor in the nose to detect a laser beam on a target. The sensor sends information to guidance and control electronics that command electromagnetic actuators. These actuators steer tiny fins that guide the bullet to the target.

Sandia Labs is seeking a private company partner to complete testing of the prototype and bring a guided bullet to the marketplace. Research and development grants have taken the project this far.

Sandia Labs said potential customers for the bullet could include the military, law enforcement and recreational shooters.