Thread: how to interpret new BC's

Different algorithms in apps. Hornady 4dof calculates different to AB. The Kestrel has the ability to bend the custom drag model. In std apps use the G7 if shooting past 1000. You can true your BC in your app to your rifle. Remember the advertised BC is for certain speeds so if you have a short barrel and or slow twist your BC may not be optimised so therefore you may need to lower the number to get your ballistic curve to match. With the 338 in Ballistic arc I used to run the normal BC to 1600m then change to the lower BC through transonic and out to 2km.