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  2. Caliber - Wikipedia

    en.wikipedia.org/wiki/Caliber

    The .308 Winchester is measured across the grooves and uses a .308-in diameter (7.82-mm) bullet; the military-specification version is known as 7.62 × 51 mm NATO, so called because the bore diameter measured between the lands is 7.62 mm, and the cartridge has a case 51 mm long. [5]

  3. Panzerjäger I - Wikipedia

    en.wikipedia.org/wiki/Panzerjäger_I

    Panzerjäger. I. The Panzerjäger I (English: "tank hunter mark I") was the first German Panzerjäger ("tank hunter") to see service in the Second World War. It mounted the Czech 4.7 cm KPÚV vz. 38 (German designation "4.7 cm Pak (t)") anti-tank gun on a converted open-topped Panzer I Ausf. B chassis. It was intended to counter heavy French ...

  4. 15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B - Wikipedia

    en.wikipedia.org/wiki/15_cm_sIG_33_(Sf)_auf...

    100 horsepower (75 kW) Transmission. 5 forward, 1 reverse gears. Operational. range. 140 kilometres (87 mi) Maximum speed. 40 km/h (25 mph) The 15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B, sometimes referred to (unofficially) as the Sturmpanzer I Bison, was a German self-propelled gun used during World War II.

  5. 7.5 cm KwK 40 - Wikipedia

    en.wikipedia.org/wiki/7.5_cm_KwK_40

    The 7.5 cm KwK 40 (7.5 cm Kampfwagenkanone [a] 40) was a German 75 mm Second World War era vehicle-mounted gun, used as the primary armament of the German Panzer IV (F2 model onwards) medium tank and the Sturmgeschütz III (F model onwards) and Sturmgeschütz IV assault guns which were used as tank destroyers. The design of the KwK 40 was ...

  6. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    sievert (SI unit) Sv. ≡ 1 J/kg [44] = 1 Sv = 1 J/kg = 1 m 2 ⋅s 2. Although the definitions for sievert (Sv) and gray (Gy) would seem to indicate that they measure the same quantities, this is not the case. The effect of receiving a certain dose of radiation (given as Gy) is variable and depends on many factors, thus a new unit was needed to ...

  7. MG 131 machine gun - Wikipedia

    en.wikipedia.org/wiki/MG_131_machine_gun

    750 m/s (2,500 ft/s) Effective firing range. 1,800 m (2,000 yd) Feed system. Belt-fed [1] The MG 131 (shortened from German: Maschinengewehr 131, or "machine gun 131") was a German 13 mm caliber machine gun developed in 1938 by Rheinmetall-Borsig and produced from 1940 to 1945. The MG 131 was designed for use at fixed, flexible or turreted ...

  8. 13 mm caliber - Wikipedia

    en.wikipedia.org/wiki/13_mm_caliber

    13 mm caliber. This is a list of firearm cartridges which have bullets that are 13 millimetres (0.51 in) caliber or larger. Length refers to the cartridge case length. OAL refers to the overall length of the cartridge. Bullet refers to the diameter of the bullet. All measurements are in mm (in).

  9. QF 4.5-inch howitzer - Wikipedia

    en.wikipedia.org/wiki/QF_4.5-inch_howitzer

    QF 4.5-inch howitzer. 114 x73-86 mm R separate QF. HE shell 16 kg (35 lb) The Ordnance QF 4.5-inch howitzer was the standard British Empire field (or "light") howitzer of the First World War era. It replaced the BL 5-inch howitzer and equipped some 25% of the field artillery. It entered service in 1910 and remained in service through the ...