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7.62 x 54 mm R /7.62x39mm vs. PASGT/ACH

Discussion in 'The Guns Galore Section' started by Che_Guevara, Oct 4, 2007.

  1. Che_Guevara

    Che_Guevara New Member

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    Hi,

    how effective protect the PASGT or ACH the soldier against shots by snipers , especially against AK-47 (7.62x39mm) and the SVD (7.62 x 54 mm R), which are primarily used in Iraq I guess. I ve read that the PASGT was able to stop a bullet of an AK-47 at a range of just 25m, is this possible at all. The ACH is made of a new type of Kevlar to provide improved ballistic and impact protection. Tests show it will withstand a hit from a 9mm round at close range, a test the previous helmets would fail. Some have even stopped IED fragments. Is it impossible for the ACH with its so called more advanced type of Kevlar increased protection to stop tha SVD´s bullets? (??A-Level III??)


    Some sources:
    http://www.defenseindustrydaily.com/us- ... ets-01089/

    http://www.globalsecurity.org/military/ ... nd/ach.htm

    http://en.wikipedia.org/wiki/Bullet-pro ... _standards

    Regards,
    Che.
     
  2. JCalhoun

    JCalhoun New Member

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    I have a WW2 Soviet carbine that uses the 7.62X54R cartridge. They are rather impressive ballistically. I don't know how well the new helmet would perform against it, especially at closer distances. It probably does well against the less powerful 7.62X39 but I still wouldn't want to take any chances.
     
  3. sinissa

    sinissa New Member

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    Old US helmet was penetrated from bouth side from Russian 7.62x25 pistol round fired from TT30, 357 did not penetrate one side. Now,i am in serius doubth that any helmet can stop 7.62x54R,eaven the old 7.62x39.
     
  4. lynn1212

    lynn1212 New Member

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    7.62 rounds

    the 7.62x39 is a little weaker than the old standby 30-30 deer round. the 7.62x54r is about equal to the 30-06, .308, and the .303. penetration depends mainly on energy and ballistic coefficient which is the ratio of the diameter and the weight of the projectile. a heavier will outperform the lighter and the better BC wins. a long heavy slug beats a short fat one. this is the basic idea behind the long rod penetrator.
     
  5. Che_Guevara

    Che_Guevara New Member

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    The following video (ca 3:30 to 4:00) shows the penetration of a PASGT by the new MP7 ( 4,6 × 30 mm)
    So if "even" the 4,6 with the velocity/energy of 725 m/s / 420 J penetrates the pasgt [against the 7,62x39 mm with the ve./en. of 710 m/s / 1991 Joule] it would be easy for the AK to penetrate the PASGT. Btw is it just the energy/bullet which is responsible for the penetration of armor ?

    http://youtube.com/watch?v=xeMYWkmAv1I
     

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