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American Eagle 308 ammo


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#1 gotsch

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Posted 23 June 2012 - 05:17 PM

How do I find the "ballistic Coefficient" rating for this ammo?? Please Please Please explain this term to me

#2 docskinner

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Posted 23 June 2012 - 10:06 PM

http://en.wikipedia....tic_coefficient

It is basically how easily a bullet goes through the air. or said a different way, how well it keeps its velocity. A higher BC means teh bullet won't lose as much velocity over its travels as one with a lower BC. It is a ratio - so it is from .000 (think pushing a cup into the wind) to 1.000 (super slick missile).

If you don't know what it is, knowing it for that round is probably is not going to do you any good.

The Federal website shows basics ballistics for both American eagle .308 rounds:

150gr fmj
http://www.federalpr...ifle.aspx?id=74

168gr otm:
http://www.federalpr...fle.aspx?id=809

You could probably email them and ask, or ball park calculate from their info there.

If it is that vital, you would probably be better off buying different ammo, and/or working up exactly what teh drop is in your rifle.




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