Lyman Handbook?

Discussion in 'The Ammo & Reloading Forum' started by Dennis Pope, Feb 19, 2004.

  1. Dennis Pope

    Dennis Pope New Member

    Sep 25, 2003
    Reynoldsburg, Ohio
    In the Lyman Reloading Handbook, on each "data section list" of the various loads, there are two numbers in the upper right corner. One is "BC" and the other is "SD." Can someone tell me what those numbers refer to? They are not explained any where in the handbook. Thank you.
  2. inplanotx

    inplanotx Active Member

    Jan 28, 2002
    Hi Dennis Pope and welcome to TFF. Glad to see y'all jump right in here. Here is the info you asked for.

    BC = Ballistic Coefficient

    SD = Sectional Density.

    Look them up in your book and they will be explained in there. Both have to do with the bullet and its flight.
    Last edited: Feb 19, 2004

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