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  2. Ballistic coefficient - Wikipedia

    en.wikipedia.org/wiki/Ballistic_coefficient

    The 6 mm and 6.5 mm cartridges are probably the most well known for having high BCs and are often used in long range target matches of 300 m (328 yd) – 1,000 m (1,094 yd). The 6 and 6.5 have relatively light recoil compared to high BC bullets of greater caliber and tend to be shot by the winner in matches where accuracy is key.

  3. NER Class G - Wikipedia

    en.wikipedia.org/wiki/NER_Class_G

    The engines were built as Class G1 2-4-0s. They had simple expansion cylinders, slide valves, and Joy valve gear. Twenty locomotives were built at Darlington Works in 1887-1888. They were initially classed as "G1" to leave the classification "G" available for a compound version. However, the compound version was not built and they were ...

  4. Prussian G 1 - Wikipedia

    en.wikipedia.org/wiki/Prussian_G_1

    1,350 mm (4 ft 5 + 1 ... 5.6 or 5.7 m 2 (60 or 61 sq ft) • Tubes: ... The Prussian G 1 was a class of 0-4-0 goods locomotive of the Prussian States Railways.

  5. CN 105-57 - Wikipedia

    en.wikipedia.org/wiki/CN_105-57

    The Giat Industries 105 mm G1 is a further development of the 105 mm CN 105/57 which is installed in the French FL 12, FL 15 and FL 20 oscillating turrets. The modification enables the weapon to fire the 105 mm OFL 105 G1 APFSDS ammunition.

  6. .50 GI - Wikipedia

    en.wikipedia.org/wiki/.50_GI

    In one test, the 300 grain (19 g) jacketed flatpoint (JFP) gave a 25-yard group of 2.56 inches, and the 300-grain Jacketed hollow point (JHP) and 275-grain JHP gave a 25-yard group of 2.3 inches. [3] The penetration in gelatin (but not necessarily the kinetic energy) of the .50 GI is significantly different than the .45 ACP.

  7. gc (engineering) - Wikipedia

    en.wikipedia.org/wiki/Gc_(engineering)

    In engineering and physics, g c is a unit conversion factor used to convert mass to force or vice versa. [1] It is defined as = In unit systems where force is a derived unit, like in SI units, g c is equal to 1.

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    mail.aol.com

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  9. .280 British - Wikipedia

    en.wikipedia.org/wiki/.280_British

    It has a slightly smaller bullet diameter of .279 in (7.1 mm) (versus .284 in or 7.2 mm for the .280) but a lighter bullet (93 to 100 gr or 6.0 to 6.5 g) with a greater muzzle velocity (2,750–2,800 ft/s or 840–850 m/s), longer case (1.8 in or 46 mm) and shorter overall length (2.45 in or 62 mm).