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  1. Ballistics - Internal and External
    I am trying to figure out how to calculate the MPBR for popular calibers such as the .270 win (130 grains), .243 win (100 grains), .308 win (150 grains) and 30/06 (150 grains), for common factory loads, using the information given in standard ballistic charts. I am thinking about a small deer as...
  2. Ballistics - Internal and External
    Hello, I am working on a calculator, and I need to know what the relationship is between MPBR, MRD and GEE... The research I have done thus far indicates that the metrics of MRD and GEE and simular and MPBR is a metric unto itself.. Can anyone tell me if that is indeed the case?... Are some of...