I wonder if anyone knows the following BC’s:
55gr M193 bullet
62gr SS109 bullet
Prvi Partizani 75gr .223 bullet
Thanks!
Ballistic coefficients are not carved in stone. They can vary from barrel to barrel and do vary depending with the velocity spectrum involved. The BCs listed below have correlated well enough for me between calculations in Oehler’s Ballistic Explorer and acutal field observations at reasonable distances.
55 grain FMJ: .243
62 grain SS109: .304
Prvi 75 grain OTM: .351