DARPA Developing One Shot Sniper Scope

Military snipers may only get one chance to hit their target. The One Shot program seeks to enable snipers to accurately hit targets with the first round, under crosswind conditions, day or night, at the maximum effective range of the weapon.

To achieve this, the One Shot system provides a measured profile of downrange crosswind and range to target. This information is then used to compensate the bullet trajectory to offset crosswind effects and range-related bullet deviations, substantially increasing the probability of first-shot hit.

One Shot XG Phase represents the next-generation of the One Shot system. In previous phases, the program conducted two development cycles through numerous field tests, government field test verifications and demonstrations to military services. The program completed Phase 2E in spring 2013 to reduce system size, weight and power and extend the engagement range. The Phase 2E system will mount on a conventional spotting scope. Because of interest expressed by services, One Shot XG was initiated to create a significantly smaller “field-ready system” that can be “clipped-on” directly to the weapon, eliminating the need for a spotter/observer in future sniper operations.

This next-generation One Shot envisions a compact observation, measurement, and ballistic calculation system mountable on either the weapon or spotting scope. The system developed will measure all relevant physical phenomena that influence the ballistic trajectory and rapidly calculate and display the offset aim point and confidence metric in the shooter’s riflescope. The system will provide the ability to see the aim point on the target in either day or night to enable rapid target identification, weapon alignment, measurement of range to target and the crosswind profile. The XG system seeks to exploit new technologies to operate over a range of visibilities, atmospheric turbulence, scintillation and environmental conditions.

One Shot XG Phase 2 began in March 2013 and is expected to be complete in Spring 2014. If successful, One Shot XG will lead to limited rate production with the military services taking on the requirement and acquisition role for future procurement.

(Source: DARPA.mil)


  • Michael Swaney

    Michael is an Army veteran and the Director of Content for Bright Mountain Media LLC

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