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  2. 6-inch/40-caliber gun - Wikipedia

    en.wikipedia.org/wiki/6-inch/40-caliber_gun

    The 6-inch (152 mm)/40 caliber Mark 4 guns were developed before the Spanish–American War and still used black powder or brown powder, in later years they were not considered strong enough to withstand the higher chamber pressures generated by the newer smokeless powder adopted around 1898.

  3. Smith & Wesson Model 686 - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_Model_686

    The Model 686 Classic Hunter was introduced in 1988 and has a 150 mm (6 in) barrel and a non-fluted cylinder; the Model 686 Black Stainless was introduced in 1989 and has either a 100 or 150 mm (4 or 6 in) barrel with a black finish, with production limited to 5000; the Model 686 National Security Special was introduced in 1992 and has a 76 or ...

  4. Smith & Wesson Model 586 - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_Model_586

    These are produced with 4-inch (100 mm) and 6-inch (150 mm) barrel lengths, as part of Smith & Wesson's Classic line of revolvers. Controversy rose when Smith & Wesson cooperated with the Clinton administration to modify their line of revolvers with an internal locking mechanism, colloquially dubbed the "Hillary Hole", and other changes.

  5. List of naval guns by caliber - Wikipedia

    en.wikipedia.org/wiki/List_of_naval_guns_by_caliber

    152.4 mm (6.00 in) Type 41 6 inch 40 caliber Japan: 1908 - 1945 152.4 mm (6.00 in) 15 cm/45 41st Year Type Japan: 1904 - 1945 152.4 mm (6.00 in) 15 cm/50 41st Year Type Japan: World War I - World War II 152.4 mm (6.00 in) 6 inch 35 caliber naval gun 1877 Russian Empire: 1880s - 1910s 152.4 mm (6.00 in) 152 mm 45 caliber Pattern 1892

  6. GMC straight-6 engine - Wikipedia

    en.wikipedia.org/wiki/GMC_Straight-6_engine

    The 301.6-cubic-inch (4.9 L) GMC inline six was produced from 1952 to 1960, when it was replaced by the V6. It has a square bore/stroke ratio of 4 by 4 inches (101.6 mm × 101.6 mm). This is the largest raised-deck engine. It was originally designed for the GMC military M135 and M211.

  7. QF 6-inch naval gun - Wikipedia

    en.wikipedia.org/wiki/QF_6-inch_naval_gun

    The QF principle had proved successful with the much smaller QF 3 pounder Hotchkiss and Nordenfelt QF 3- and 6-pounders from 1885 onwards, and with QF 4.7-inch Mk I – IV naval gun from 1886. The Mk I was an Elswick gun of built up construction , which passed its trials on Elswick range near Silloth in the presence of Lord George Hamilton in ...

  8. Colt Python - Wikipedia

    en.wikipedia.org/wiki/Colt_Python

    Initially made only with a 6-inch (15 cm) barrel, a compact 4-inch (10 cm) came afterward. Between 1955 and 1994, a downsized 2.5-inch (6.4 cm) barrel version was introduced which still sported full-sized grips. Colt also produced a few short runs of revolvers with a 3-inch (7.6 cm) barrel known to collectors as "Combat Pythons." [27] [28]

  9. Smith & Wesson Model 610 - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_Model_610

    In 2019, Smith and Wesson reintroduced the 610 in 4-inch (10 cm) and 6-inch (15 cm) barrel lengths. Like the 1998 version, the 2019 models have a six-round capacity, stainless steel for all major parts, and Smith and Wesson's safety-lock system.