Anybody know the ballistic coefficient of Cor Bon and Lake City .308 175gr ?
Range Report Ballistic coefficient
- Thread starter htorano
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Re: Ballistic coefficient
For L.C. use Sierra's numbers: .490 to 1000 IF you're only using one number. That's a G1. IF you have a program that will handle multiple BC's then Sierra publishes .505 above 2800 fps; .496 from 1800 to 2800; .485 below 1800. My older Sierra III only handles 3 entries. Sierra now often breaks down the numbers over 4 entries (when this happens, I compute an adjusted entry to squeeze 1 pair of the four into one entry. I won't bore you with details. Go to the Sierra website and you can download all the BC's.
Without knowing Corbon's bullet choice, I'd wag it and just assume Sierra's numbers.
For L.C. use Sierra's numbers: .490 to 1000 IF you're only using one number. That's a G1. IF you have a program that will handle multiple BC's then Sierra publishes .505 above 2800 fps; .496 from 1800 to 2800; .485 below 1800. My older Sierra III only handles 3 entries. Sierra now often breaks down the numbers over 4 entries (when this happens, I compute an adjusted entry to squeeze 1 pair of the four into one entry. I won't bore you with details. Go to the Sierra website and you can download all the BC's.
Without knowing Corbon's bullet choice, I'd wag it and just assume Sierra's numbers.
Re: Ballistic coefficient
If you go to JBM you can get Bryan Litz's tested numbers applied to your data input and get extremely good numbers (assuming you put in good data).
If you go to JBM you can get Bryan Litz's tested numbers applied to your data input and get extremely good numbers (assuming you put in good data).
Re: Ballistic coefficient
thanks boys
thanks boys
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