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  2. T-mount - Wikipedia

    en.wikipedia.org/wiki/T-mount

    The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component.

  3. .50 Beowulf - Wikipedia

    en.wikipedia.org/wiki/.50_Beowulf

    Neck diameter.525 in (13.3 mm) Base diameter.535 in (13.6 mm) Rim diameter.445 in (11.3 mm) Case length: 1.65 in (42 mm) Overall length ... Large pistol magnum ...

  4. Table of handgun and rifle cartridges - Wikipedia

    en.wikipedia.org/wiki/Table_of_handgun_and_rifle...

    5.8×42mm DBP87: 1987 China R 5.8×42mm 3100 1395 0.9 0.236 42mm Chinese service rifle QBZ-95: 6×57mm Mauser 1895 Germany R 6×57mm 2600 0.236 57mm aka 6.2×57mm RWS. Necked down 6.5×57mm. The 6mm Remington is a carbon copy. 6×62mm Freres 1983 Germany 1 R 6×62mm 3460 2260 0.243 62mm also 6×62mmR, based on 9.3×62mm case. 6mm Lee Navy: 1895 ...

  5. List of handgun cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_handgun_cartridges

    7.62×42mm SP-4.307 7.8: 1.634 41.5: ... several rifle and shotgun cartridges have also been chambered in a number of large ... Bullet diameter Handgun application ...

  6. How to Buy a Dress Watch - AOL

    www.aol.com/lifestyle/buy-dress-watch-203100667.html

    By the late 1990s, watches were starting to become big—like, really big.These 42mm, 44mm, and even 47mm behemoths were, in a way, reflective of the dress codes of the day—think JNCOs ...

  7. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    The dominant European size for die-cast ship models, most comprehensive range. 1:1200: 0.01 0.254 mm: Ship models: A British and American size for ship and harbour models. Airfix used to produce in this scale. 1:1000: 0.305 mm This is a scale used in Germany for pre-finished airliner models. Herpa and Hogan Wings produces several models in this ...

  8. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    A shoulder is formed, and the case is lightly trimmed to length, and the neck is sized to .338, down from 0.401". The 10mm rim is 0.424" (10.8mm) in diameter, and the SPC rim diameter is 0.422" (10.7mm). The .338 caliber bullets are available in weights between 200gr-250gr. 350 Legend, Proprietary. The head and rim dimensions exactly match the ...

  9. M42 lens mount - Wikipedia

    en.wikipedia.org/wiki/M42_lens_mount

    The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.