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Can someone please explain why

Discussion in 'Handloading and Reloading' started by papajoe222, Sep 30, 2019.

  1. Blue68f100

    Blue68f100 Member

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    Its the powder burning that generate the gas. Gas by it's self in this case is confined to the chamber/barrel. It's a fixed quantity based on what the burning powder. It changes though based on how much powder there is to burn.
     
  2. Swampman

    Swampman Old Fart

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    >>>>>>A gas is not a liquid it can be compressed therefore it does not need more space to create more volume .<<<<<<

    It absolutely does.

    I think you're confusing volume with potential volume.

    Let's use your example of an air tank.

    For purposes of discussion let's say that the tank is 12"x12"x12" and has a capacity of one cubic foot.

    Then we take a compressor and pump an additional 1000 cubic feet of ambient pressure air into the tank.

    Note that the volume of the tank hasn't changed and it still holds exactly one cubic foot of air, it's just highly pressurized air now.

    That cubic foot of air has the mass of 1000 cubic feet of air, and when released from the tank that air has the potential to expand back into 1000 cubic feet of ambient pressure air, but while it's contained in the tank it has a volume of one cubic foot because that's how big the tank is.

    The air contained in the tank is not expanding because the walls of the tank have it fully enclosed. The air is constantly exerting pressure, but it can only expand when it is released from the tank.
     
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  3. Metal God

    Metal God Member

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    Ok I’ll buy that ,

    My original wording should have read . The gases are going to continually “compress” regardless of whats in front of it . This will continue to raise pressures to dangerous levels if the bullet does not get out of the way ??
     
  4. Swampman

    Swampman Old Fart

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    @Metal God
    I'd prefer to term it as "build pressure", because "compress" implies an actual decrease in volume rather than an increase in the amount of gas occupying the same volume, but your statement as amended is essentially correct.
     
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  5. Metal God

    Metal God Member

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    Thank you . I can see how the essential truth is acually the opposite of what I originally said .

    I do like learning , it just takes a hammer sometimes .

    Thanks again
     
    Last edited: Oct 8, 2019
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  6. Walkalong

    Walkalong Moderator Staff Member

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    Me too brother.... :)
     
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  7. Swampman

    Swampman Old Fart

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    No problem friend.

    I learned a good bit about the topic myself while figuring out exactly how to word what I was attempting to explain.

    My brother says he could teach me how to do cabinet work if he could find a big enough sledgehammer to pound the knowledge through my thick skull.
    :D
     
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