"A battlefield meteorite...

Discussion in 'Weapons' started by Bkite, May 30, 2016.

  1. Bkite

    Bkite PawPaw x 3

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  2. CoffeeMate

    CoffeeMate Junior Butt Warmer

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    :whisper: ...nobody mention the laser...
     

  3. EJR914

    EJR914 Cheezburger Operator

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    So I'm guessing this is openly carry?

    When are they going to make it smaller for conceal carry?
     
  4. AtlPhilip

    AtlPhilip Proud GCO member.

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    I think her explanation of the rail gun is probably one of the worst examples of Journalism I have ever seen/heard. Absolutely painful to watch.
     
  5. moe mensale

    moe mensale Well-Known Member

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    In a "conventional" gun the bullet has a velocity of zero before ignition occurs. So at ignition that bullet starts losing velocity? From zero? Negative velocity? :?
     
  6. CoffeeMate

    CoffeeMate Junior Butt Warmer

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    Yeah, it's called recoil. That's why they have those compensator ports on the barrel shroud. It makes the bullet go to warp speed as soon as your shoulder thingie starts to go up.



    [/sarcasm]

    :lol:
     
  7. RedLeg17

    RedLeg17 Active Member

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    They have it right. After the acceleration caused by the ignition of the propellant, the round loses velocity as it travels down the barrel.
     
  8. CoffeeMate

    CoffeeMate Junior Butt Warmer

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    Okay, but that's not what they said.
     
  9. xd45packer

    xd45packer Member

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    Is that why shorter barrels have higher muzzle velocity?:whistle:
     
  10. AtlPhilip

    AtlPhilip Proud GCO member.

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    F = (P x A) - Friction

    A = F / M

    V = 1/2 A x t^2

    A bullet continues accelerating until the frictional force exceeds the force caused by gas pressure. Generally, until it leaves the barrel, at which point F = 0
     
  11. 45_Fan

    45_Fan Well-Known Member

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    I think the point was that with a railgun the force on the projectile is constant over the length of the barrel. With a chemical propellant it tapers off.
     
  12. Match10

    Match10 Active Member

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    No, it does NOT! It accelerates continually until it exits the barrel.
     
  13. EJR914

    EJR914 Cheezburger Operator

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    I'm sure since this weapon users magnets to propel the projectile, it too starts to decelerate as soon as it leaves the barrel, also.
     
  14. AtlPhilip

    AtlPhilip Proud GCO member.

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    Yes, right up until he penned this tripe...

    "Remember, guns don't kill people. Bullets do. To paraphrase Chris Rock in Bigger, Blacker and Uncut, if bullet prices were raised to $5,000 each, there would be a drastic decrease in murders"
     
  15. CoffeeMate

    CoffeeMate Junior Butt Warmer

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    That's Feinstein thinking.

    No, there would be a drastic increase in ammo theft.
     
  16. Nemo

    Nemo Man of Myth and Legend

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    I would be one rich SOB.

    Nemo
     
  17. Taurus92

    Taurus92 Well-Known Member

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    They would simply be expanding the product market for drug dealers.
     
  18. Taurus92

    Taurus92 Well-Known Member

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    Since there is no gunpowder, what's up with the muzzle flash? Gas compression and release as it exits the barrel?
     
  19. AtlPhilip

    AtlPhilip Proud GCO member.

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    Not all railguns operate purely an electromagnetic field. Some use a thin layer of conductive propellant attached to the rear of the projectile, similar to the experimental designs for a caseless cartridge.

    The key difference between this type of gun and a traditional firearm is that the propellant is often made of metal. The massive power dump causes the propellant to vaporize into a gas. This is the same process used by chemical propellants, except that the propellant is inert.

    The other possibility is that the amount of energy being dumped creates a cloud of ionized gases or even a plasma cloud. Either could look very similar to a fireball as they exited the barrel.