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Thread: What is an easy way to compare Tin and Lead

  1. #1
    Boolit Man pete501's Avatar
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    Oct 2012
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    What is an easy way to compare Tin and Lead

    I would like to know what weight percentage tin is in relation to the same volume of lead. Someone out there has figured this out.

    I have some suspect "tin" soldiers that I want to cast into a mold and compare the weight to the known weight of a lead boolit. The scrap yard has a XRF gun but with my work schedule it would be difficult get out there.

  2. #2
    Boolit Mold
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    Sep 2017
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    Easiest way? Put it aside and wait 'till you make it to the scrap yard?

  3. #3
    Boolit Master Cowboy_Dan's Avatar
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    You could compare the weights of a bullet cast of pure lead and your mystery alloy. With a little math, this is pretty easy. Here are the formulas you need to fill in:

    M1/175=V

    (M2-112V)/63=P (remember to do the part in the parentheses before dividing)

    P/V=L

    M1 is the mass of the pure Lead boolit
    V is the volume of the boolit
    M2 is the mass of the mystery metal boolit
    P is the amount of Lead by volume
    L is the percent Lead of the mystery alloy

    Note: these particular formulas are for a Lead/Tin alloy, other metals in the alloy will give an incorrect result.
    "It is wrong always, everywhere, and for everyone to believe anything on insufficient evidence."
    -W. K. Clifford "The Ethics of Belief"

    "They hate you if you're clever, and they despise a fool."
    -John Lennon "A Working Class Hero"

  4. #4
    Boolit Man pete501's Avatar
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    Thanks. That was what I was looking for.

  5. #5
    Boolit Bub
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    Sep 2016
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    Wikipedia says pure lead at room temperature is 11.34 grams per cubic centimeter. The same volume of pure tin at room temp is 7.27 grams, or 64.1 %.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
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