This study investigated the degree of difference in accuracy due to aiming error between three types of exper¬imental sighting devices:An iron sight with a twenty inch sight radius utilizing a plexiglass plate upon which a ret¬icle was etched for the front post (Sight "A"), a unity-power optic using singlet lenses (Sight "B"), and a unity-power optic using doublet lenses (Sight "C").nTwenty-eight Infantry men from Fort Dix, Hew Jersey were used as subjects.nGreater accuracy will be attained with Sight "C" than Sight "B", and Sight "B" will yield better perfor¬mance than Sight "A".nDeterminants of qualitative disparity between the sights, and possible effects of low illumination sighting are discussed.
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