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Help on bullet nomenclature.

Discussion in 'General Gun Discussions' started by FilJos, Aug 7, 2006.

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  1. FilJos

    FilJos Member

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    Can someone either direct me to a site that can help or just tell me what all the letters after the grain weight stand for?

    I understand the basics, but what exactly are:

    JHC
    CNL
    LFN-GC
    LV

    Any other gems anyone can think of?

    The more I look at specialty ammunition, the more confused I am.

    And now I'm sure someone will come along and tell me to either use the search engine (already tried that, maybe I'm just inept) or roll thier eyes at someone asking such a "basic" question, like duh, anyone should know that.
     
  2. dcloudy777@aol.com

    dcloudy777@aol.com Member

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    Conical Nose Lead
    Lead Flat Nose - Gas Check

    not sure about the other two...

    DanO
     
  3. FilJos

    FilJos Member

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    'nuther dumb one: What does "Gas Check" mean?
     
  4. dcloudy777@aol.com

    dcloudy777@aol.com Member

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    A gas check is a thin "disc" of copper at the base of a non-jacketed bullet, in order to reduce barrel leading from higher velocities.

    DanO
     
  5. Mannlicher

    Mannlicher Member

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    a 'gas check' is a little copper cap that goes on the bottom of a lead slug. It looks not unlike a tiny cup. The purpose is to reduce leading, and hopefully help with accuracy.
     
  6. Baba Louie

    Baba Louie Member

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    http://www.recguns.com/Sources/IE.html

    Open link and read. For specifics re: acronyms scroll down to ammunition and read. (most, not all, but many questions will be answered)

    As to gas check... rear end of bullet is capped w/ copper cup, once powder has ignited the rear cap expands outward to meet barrel wall "checking" the resultant gas from escaping past the bullet (kinda like piston rings... only not)
    http://www.bulletswage.com/images/ad-bg1.jpg

    Feel free to ask questions. Just don't be surprised at the answers you get. I'm usually only wrong about 75% of the time... or am I? ;)
     
  7. FilJos

    FilJos Member

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    Thanks everyone. I really appreciate it.
     
  8. Stickjockey

    Stickjockey Member

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    Some more:

    TMJ-Total Metal Jacket

    FMJ-Full Metal Jacket

    HP-Hollowpoint

    HPSWC-Hollowpoint Semi-Wadcutter

    SWC-Semi-Wadcutter

    WC-Wadcutter

    EFMJ-Expanding Full Metal Jacket
     
  9. Lupinus

    Lupinus Member

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    a gas check is a small copper cup that fits onto the base of a cast lead bullet you press on with a luber sizer press. It helps cut down on leading by protecting the base of the bullet. Also because it keeps the base from being melted and deformed it can help improve accuracy.
     
  10. MachIVshooter

    MachIVshooter Member

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    Jacketed hollow cavity (yes, redundant terminology; It's not a "cavity unless it's hollow:rolleyes: )
     
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