Sorry if this has been covered and if so please kindly direct me to the thread. A quick search wasn't fruitful for me. Anyway does anyone know how I can determine bullet coefficient? Where would one normally find this info and is there a formula where I can derive coefficient with my calipers and scales. I've taken to casting my own rounds and while I'm aware coefficient is not crucial I would still like the know how. Thanks in advance CSF'ers.