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  2. Stadiametric rangefinding - Wikipedia

    en.wikipedia.org/wiki/Stadiametric_rangefinding

    The term stadia comes from a Greek unit of length Stadion (equal to 600 Greek feet, pous) which was the typical length of a sports stadium of the time. Stadiametric rangefinding is used for surveying and in the telescopic sights of firearms , artillery pieces , or tank guns , as well as some binoculars and other optics.

  3. Milliradian - Wikipedia

    en.wikipedia.org/wiki/Milliradian

    When using a scope with mrad adjustments, but without mrad markings in the reticle (i.e. a standard duplex cross-hair on a hunting or benchrest scope), sight correction for a known target subtension and known range can be calculated by the following formula, which utilizes the fact that an adjustment of 1 mrad changes the impact as many ...

  4. .460 Weatherby Magnum - Wikipedia

    en.wikipedia.org/wiki/.460_Weatherby_Magnum

    The 500-grain (32 g) Weatherby factory ammunition has a maximum point blank range of 245-yard (224 m). These trajectories compare well with those of the .375 H&H Magnum . At 200 yd (180 m) Hornady's Interlock .375 H&H Magnum's 270 gr (17 g) bullet drops 11.3 in (29 cm) while Hornady's DGX 300 gr (19 g) bullet drops 13.8 in (35 cm).

  5. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    The metric system counterpart of the MOA is the milliradian (mrad or 'mil'), being equal to 1 ⁄ 1000 of the target range, laid out on a circle that has the observer as centre and the target range as radius. The number of milliradians on a full such circle therefore always is equal to 2 × π × 1000, regardless the target range. Therefore, 1 ...

  6. M21 sniper weapon system - Wikipedia

    en.wikipedia.org/wiki/M21_Sniper_Weapon_System

    Effective firing range: 460 m (500 yd) 900 m (980 yd) (with 3–9× scope) [5] [6] Maximum firing range: 3,725 m (4,074 yd) Feed system: 5-, 10-, or 20-round detachable box magazine: Sights: Front: National Match front blade. Rear: Match-grade hooded aperture with one-half minute adjustments for both windage and elevation 26 + 3 ⁄ 4 in sight ...

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  8. M110 Semi-Automatic Sniper System - Wikipedia

    en.wikipedia.org/wiki/M110_Semi-Automatic_Sniper...

    A goal of the effort was to give snipers a weapon that didn't "stick out" as a sniper rifle; with a suppressor, the M110 is 46.5 in (1,180 mm), 13 in (330 mm) longer than the M4 carbine and 7 in (180 mm) longer than the M16A4 rifle. A minimum of 30 CSASS units will be used for production qualification testing and operational testing over 24 months.

  9. Range (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Range_(aeronautics)

    The maximum range condition is obtained at maximum lift/drag ratio (L/DMAX) The maximal total range is the maximum distance an aircraft can fly between takeoff and landing . Powered aircraft range is limited by the aviation fuel energy storage capacity (chemical or electrical) considering both weight and volume limits. [ 1 ]