simplified range card help

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by GCG, Aug 9, 2012.

  1. GCG

    GCG Member

    Messages:
    7
    Joined:
    Jan 14, 2011
    I am starting out using JBM's simplified trajectory card. I am trying to use it for 180 gr TSX in .308 & 140 ttsx & 120 Tsx in .284.

    Do I want to use G1 or G7 option for these ? Also the first drop down menu for the .308 gives you the option of using the Litz, or just plain 180 TSX boattail. After that everything else looks easy enough.

    Thanks