180 ELD-M.......WOW, think the BC is right guys?

It might be right at one single velocity in the whole trajectory but an average of all the velocity boundaries BC's would be a lesser figure and far more accurate .
 
I looked into it a little while back. I believe that you need a 7 or 7.5 twist to get those numbers.
 
You can't state twist rates until you know the velocity or state a velocity .
@2700 fps it's stable in a 1 in 9
 
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