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Thread: Dimensions on Accurate Mold Drawings?

  1. #1
    Boolit Master

    alamogunr's Avatar
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    Dimensions on Accurate Mold Drawings?

    It has been almost 16 years since I retired and dimensioning systems are a dim recall. I'm not familiar with the system used on Accurate's mold drawings. Specifically, how do I arrive at the overall length of the cast bullet? Do the dimension arrows that line up vertically add together to get the total from a datum line? AND, what do the pair of dimensions on the right side of the drawing under the mold number represent?

    The two molds I'm looking at are:

    45-230A
    45-230F

    I've only ordered one other Accurate mold and did so on the recommendation of another caster.
    John
    W.TN

  2. #2
    Boolit Master TurnipEaterDown's Avatar
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    45-230A -- total length = 0.595"
    45-230F -- total length = 0.610"
    Take the difference (i.e. do math) if you want dimension between two features -- such as if a bullet design you like has a crimp groove for a revolver.

  3. #3
    Boolit Master
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    His reference seems to be a zero corner on the lower left side of each drawing, at the bullet base - so you could call that a convergence of A and B datums, even though they are not so defined. He calls out the ogive length as a basic dimension.

  4. #4
    Boolit Master

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    Thanks!
    John
    W.TN

  5. #5
    Boolit Master bigboredad's Avatar
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    Besides the measurements I would go with the 230A

    Sent from my SM-T377V using Tapatalk

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