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Though useful for sharpshooting with normal infantry units, the design was generally rejected by sniper schools and disliked by snipers, because the 1.5x magnifying scope was deemed insufficient for shooting effectively at point targets over long distances. Problems were the scope's extreme eye relief, poor functioning in bad light and low ...
If the eye relief of a telescopic sight is too short, leaving the eye close to the sight, the firearm's recoil can force the optic's eyepiece to hit and cut into the skin around the shooter's eye, leaving a curved scarring laceration on the medial end of the supraorbital ridge and the eyebrow. This is frequently called a "scope bite", or the ...
Alternately a scout rifle-type mount can be used, which places a long-eye-relief telescopic sight forward of the action. A firearm may not always be able to fit all aiming optics solutions, so it is wise to have a preferred aiming optics solution first reviewed by a professional.
The optimum eye relief distance also varies with application. For example, a rifle scope needs a very long eye relief to prevent recoil from causing it to strike the observer. [1] The exit pupil can be visualized by focusing the instrument on a bright, nondescript field, and holding a white card up to the eyepiece.
A C79 Optical Sight. The C79 optical sight (SpecterOS3.4x) is a telescopic sight manufactured by Elcan.A variant, the M145 Machine Gun Optic is in use by the US military. It is 3.4×28, meaning 3.4x magnification, and a 28mm diameter objective lens.
Eye relief: 25 mm; Light permeability: >80%; Reticle illumination: Red tritium, glass ampoule; Illumination strength: Adjustable; Tritium ampoule lifetime: 8–12 years; Focus: −0.75 to −1.25 dioptres; Operational temperature: −46 to +71 °C; Range Settings: 100 to 600 meters (SUSAT L9A1) or 300 to 800 meters (SUSAT L12A1) in 100 m intervals
The Vidhwansak is equipped with an 8X magnification, long-eye-relief telescopic sight with parallax adjustment. A 12X ballistic scope can also be attached. [citation needed] The rifle has an effective range of 1,800 m (5,900 ft) (1,300 m (4,300 ft) for the 20 mm version), [6] while shots
In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6] Between 2004 and 2005, the TA31RCO-A4 & M4 (AN/PVQ-31A & 31B) was selected as the official Rifle Combat Optic of the United States Marine Corps , prompting Trijicon to produce 100,000 ...