Slobodan Rajic with a lab prototype of ORNL's Reticle Compensating Rifle Barrel Reference Sensor (Image: ORNL/Ron Walli)
A lab prototype of ORNL's Reticle Compensating Rifle Barrel Reference Sensor (Image: ORNL/Ron Walli)
At long ranges, snipers must compensate not only for crosswinds and the fact that bullets travel in a curved trajectory, but also allow for even very small barrel disruptions that can cause a shooter to miss their intended target by a wide margin. Contending with such difficulties makes feats such as the 1.53 mile (2.47 km) sniper kills by British Corporal Craig Harrison even more impressive, but a new type of rifle sighting system developed at the Oak Ridge National Laboratory (ORNL) could take one of these variables out of the equation. The fiber-optic laser-based sensor system precisely measures the deflection of the barrel relative to the sight and automatically adjusts the crosshairs to match.
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