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Odd Question

Discussion in 'Band of Glockers' started by charlie-xray, Jan 26, 2006.

  1. charlie-xray

    charlie-xray Gunpowder Adik

    1,174
    0
    Aug 11, 2004
    Pugad Baboy
    I have an odd question but humour me because I badly need clarification.

    Is it accurate that when you try to insert the .40 cal on the mouth of the barrel (exposed, outer part) you'd notice the FMJ head is actually a tiny wit bigger than it should be.

    Just my curiosity that needs confirmation
     
  2. vega

    vega

    2,799
    0
    Sep 29, 2001
    SoCal
    That's normal.
    The right term is muzzle end,
    the other side is chamber.

    vega
     


  3. horge

    horge -=-=-=-=- Lifetime Member

    3,045
    19
    Jan 22, 2004
    almost home
    It's true of any modern bullet and a rifled barrel :)

    The gases produced by the burning cartridge propellant produce the
    immense pressure necessary to force the bullet rapidly through a
    barrel that is otherwise too tight for it to fit in.

    That is why barrel rifling leaves it's impressions on the sides of a
    fired bullet: the bullet is deformed by the barrel's tightness.

    If the bullet could just fall freely through the barrel, then much
    of the gases would bypass the bullet, bleeding through the surrounding
    gap between barrel and bullet, wasting pressure.

    Furthermore, the insufficient contact (obduration if you like)
    between bullet and barrel rifling would prevent said rifling from
    imparting proper spin and stability to the bullet.

    h.
     
  4. charlie-xray

    charlie-xray Gunpowder Adik

    1,174
    0
    Aug 11, 2004
    Pugad Baboy
    Malupit ka talaga Horge Thanks a lot

     
  5. mc_oliver

    mc_oliver

    3,499
    0
    Feb 21, 2002
    Philippines
    Except that in your case, pressure builds-up in the end rather than in the beginning. ;f;f;f