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jaketodd

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Join Date:

08-14-2011

Last Activity:

04-17-2013 12:23 PM

    ABOUT ME

  • Seattle,WA

LATEST ACTIVITY

  • Posted in thread: Which copper isotope(s) are brass shell cartridges made of? on 08-24-2011 at 12:15 AM
    Did you notice that the two metallurgy buffs were both from the Seattle/Tacoma area and have
    the same post count? I think they were putting us on for fun.How about you guys go over to the
    introduction...

  • Posted in thread: Which copper isotope(s) are brass shell cartridges made of? on 08-23-2011 at 01:54 AM
    Just what are you getting at Jake? I always thought Copper, like Hydrogen was a fairly stable
    element. Are you thinking of the effect of a nuclear blast on cartridge brass?To my knowledge,
    the isotope...

  • Posted in thread: Which copper isotope(s) are brass shell cartridges made of? on 08-23-2011 at 12:01 AM
    Hello Jake,The copper used in cartridges has all the naturally occurring isotopes in it. When
    copper is produced none of the isotopes are separated.But due to the very short half-lives of
    copper isoto...

  • Posted in thread: Which copper isotope(s) are brass shell cartridges made of? on 08-22-2011 at 11:01 PM
    :confused: I assume you are talking about 64Cu. However, that has a very short half-life
    according to the wikipedia page. Are you sure they don't use 63Cu and/or 65Cu? Those are the
    only stable forms ...

  • Posted in thread: Which copper isotope(s) are brass shell cartridges made of? on 08-19-2011 at 03:35 AM
    Which copper isotope(s) are brass shell cartridges made of (63Cu and/or 65Cu)? Or is the copper
    29Cu?Thanks,Jake

  • Posted in thread: Heat required to ignite standard cartridge's primer on 08-15-2011 at 12:17 AM
    When a cartridge is fired, the primer is struck and the pressure of the primer increases until
    it ignites. Since, to my understanding, pressure is the same as heat, how much heat is required
    to ignite...

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