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Is it possible to calculate BC from a list of projectiles measurments??

HI
Just wondering if you can mathematically calculate a projectiles BC from it's physical measurements??

Was talking to the local custom projectile maker about my 30 BR order and I told him about my 20cal barrel troubles. Mentioned I was making a .224 cal now- he said he had some "long jackets" that would make a great FBHP in about a 57-58 grain weight with close to an 8 ogive. Would I like to try some??

So far I know it's .224, assume 57.5 grain, FBHP and assume 8 Ogive.
What other info do I need to rough out a BC???
I'm not looking for 4 decimal places calculations-
But something so I can put the measurement into a ballistics calculator to get some expected results to test against.

Thanks

later
P
 
Find the BC of a 60gr.FBHP from Sierra in .224 and multiply that value by the ratio of 57.5/60.0. That will give you a good working value.
 
http://www.eskimo.com/~jbm/calculations/drag/drag.html
This gives theoretical results, which may or may not correspond to real world results. Should be reasonably close though.
 

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