RE: Ballistic Chart 45/250gr. Shockwave
I believe we all know that the BC changes with the velicity,so different muzzle velicities will give different answers.
Just to add a bit with my old,old chrony and my Omega Z5 a winchester 209 and 125gr APP-FF I get a BC of .210 for a 250 SW. I don't have a program so I did it with a calulater. The way I try to check the answers is by shootin and seeing if the trajectory at 150yards matches my answers. Lee