08-05-2015, 03:17 AM
To those who complained that I wasn't being fair to 6.5 Grendel when I calculated ballistics tables using the Norma 120gr FMJ (0.428 G1 BC) in comparing performance with 7.62 M80 Ball:
Using velocities from the PPU ballistics table for the 110gr FMJ ( http://www.prvipartizan.com/search_rb.php?id=A-484 ), the JBM calculator ( http://www.jbmballistics.com/cgi-bin/jbmbcv-5.1.cgi ) gives a 0.205 G7 BC (0.407 G1 BC).
That makes the BC significantly lower than that of the supposedly "poorly shaped" Norma bullet. :p
Using velocities from the PPU ballistics table for the 110gr FMJ ( http://www.prvipartizan.com/search_rb.php?id=A-484 ), the JBM calculator ( http://www.jbmballistics.com/cgi-bin/jbmbcv-5.1.cgi ) gives a 0.205 G7 BC (0.407 G1 BC).
That makes the BC significantly lower than that of the supposedly "poorly shaped" Norma bullet. :p
