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  • of the boltcarrier to the bolthead became 3:1, so the rear boltcarrier was forced to move three times faster than the bolthead. The rearward forces on the...
    12 KB (1,305 words) - 00:12, 3 October 2024
  • Thumbnail for Bolt action
    design has a separate bolthead that rotates with the bolt and the bearing lugs, in contrast to the Mauser system where the bolthead is a non-removable part...
    33 KB (4,183 words) - 10:00, 1 October 2024
  • Thumbnail for De Lisle carbine
    III* converted to .45 ACP. The receiver was modified, altering the bolt/bolthead, replacing the barrel with a modified Thompson submachine gun barrel (six...
    14 KB (1,478 words) - 22:16, 9 October 2024
  • Thumbnail for Lee–Enfield
    the only difference being the .22 calibre barrel, empty magazine case, bolthead and extractor which have been modified to fire .22 calibre rimfire cartridges...
    118 KB (13,634 words) - 16:56, 4 October 2024
  • Thumbnail for Matrass
    some identity of shape is the reason for the application of the word; bolthead is also used as a name for the vessel. Another connection is suggested...
    1 KB (143 words) - 17:22, 29 January 2024
  • of the bolt carrier to the bolthead became 3:1, so the rear bolt carrier was forced to move 3 times faster than the bolthead. The rearward forces on the...
    59 KB (7,386 words) - 06:06, 5 October 2024
  • Toronto, Ontario, Canada March 18 – 20 3161 Tronic Titans, 4920 Belle River Boltheads, 6140 SMT Titans - The 'Tita'BOTS Haliç Regional Istanbul, Istanbul Province...
    37 KB (1,189 words) - 05:55, 15 August 2024
  • Thumbnail for Lee–Metford
    accurate than the Enfield pattern of rifling. In this context, barrels and boltheads could be replaced as frequently as the owner wished, or could afford....
    13 KB (1,448 words) - 10:12, 11 October 2024
  • Thumbnail for Queens' College, Cambridge
    help the Queen Mother cross the bridge on her visits to the college. The boltheads are more visible in the post-1905 bridge, which may have given rise to...
    52 KB (4,698 words) - 09:08, 10 October 2024
  • Thumbnail for Action (firearms)
    achieved by a series of concentric "claws" that protrude/retract from the bolthead, a design that is referred to as Radialbundverschluss ("radial connection")...
    33 KB (3,824 words) - 18:55, 26 September 2024
  • Thumbnail for Tay Bridge disaster
    another was the pinching-down action of the bolts. This was reduced as boltheads and nuts were unfaced – some nuts had burrs up to 0.05 inches (1.3 mm)...
    89 KB (12,427 words) - 12:34, 4 October 2024
  • and change. p. 27. ISBN 978-0-521-82873-4. Haley, Christopher (2002). Boltheads and Crucibles: a brief history of the 1702 chair of chemistry at Cambridge...
    8 KB (853 words) - 19:32, 9 September 2024