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Lyman Reloading Handbook 49th

Discussion in 'Handloading and Reloading' started by glenns, Aug 26, 2011.

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  1. glenns

    glenns Member

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    Just bought this:

    For the loading data for each bullet type there is notation on the right corner just below a picture of the bullet. What is "BC" and "SD?"

    Example: on page 341, 9 mm Luger, 147 gr. TMJ -
    BC: .208
    SD: .167

    Thanks.
     
  2. MtnCreek

    MtnCreek Member

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  3. glenns

    glenns Member

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  4. Jim Watson

    Jim Watson Member

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    You gotta watch out for ol' Chuck. Sometimes he gets it right, sometimes he doesn't.
    Sectional density is the ratio of a bullet's weight to its diameter squared. Like I said in your other thread.
     
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