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Thread: M1 Abrams Tank

  1. #1
    Shooter

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    M1 Abrams Tank

    I was watching the Science channel.
    It was about the building and theory of the design for the M1 Abrams Tank.
    My question is what is the purpose of the bulge in the middle of the 120 mm canon?
    I seen some are shorter that others.

  2. #2
    Expert indyartisan's Avatar

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    The bore evacuator reduces the risk of propellant gases entering the crew compartment, allowing a greater rate of fire. It causesa pressure differential in the barrel, ensuring gases leave from the muzzle end of the barrel/tube.

  3. #3
    Shooter

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    "It's not a tumah"

  4. #4
    I still care....Really
    churchmouse's Avatar

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    Quote Originally Posted by femurphy77 View Post
    "It's not a tumah"
    ………..Richard Pryor.

    I have wondered as to the bulge myself. Interesting how this entire package was thought out.
    AKA..Thor. Odin son. God of thunder.
    But you can call me John.....Force.

    If the brain were so simple we could understand it, we would be so simple we couldn’t

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  5. #5
    Grandmaster HoughMade's Avatar

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    “No need to go heeled to get the bulge on a tub like you.”
    ​Bullies suck. They also make you stronger.

  6. #6
    Expert BigMoose's Avatar

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    The M256 120MM smoothbore (yep, no rifling) lump is indeed a bore evacuator.

    https://www.inetres.com/gp/military/cv/weapon/M256.html



    its really a German Rheinmetall 120mm L44 smoothbore gun
    I don't need no teenage queen, I just need my M14!

  7. #7
    I still care....Really
    churchmouse's Avatar

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    Quote Originally Posted by BigMoose View Post
    The M256 120MM smoothbore (yep, no rifling) lump is indeed a bore evacuator.

    https://www.inetres.com/gp/military/cv/weapon/M256.html



    its really a German Rheinmetall 120mm L44 smoothbore gun
    Those crafty Germans.....
    AKA..Thor. Odin son. God of thunder.
    But you can call me John.....Force.

    If the brain were so simple we could understand it, we would be so simple we couldn’t

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  8. #8
    Plinker

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    Ok, next question, why a smoothbore in a precision weapon?
    Never ascribe to malice or conspiracy, that which can be adequately explained by ignorance or incompetence...

  9. #9
    Grandmaster HoughMade's Avatar

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    Less bore wear and tank rounds can be fin stabilized and work better with smooth bore.
    ​Bullies suck. They also make you stronger.

  10. #10
    Shooter

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    Quote Originally Posted by indyartisan View Post
    The bore evacuator reduces the risk of propellant gases entering the crew compartment, allowing a greater rate of fire. It causesa pressure differential in the barrel, ensuring gases leave from the muzzle end of the barrel/tube.

    Thanks guys, Now I really wonder how this person came up with the idea and design.
    There are some great minds working out there.


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