Reply To: Ballistic coefficient, does it vary from barrel to barrel?

Forums General Discussion Ballistic coefficient, does it vary from barrel to barrel? Reply To: Ballistic coefficient, does it vary from barrel to barrel?

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broekzwans
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“hsnmz”I have a Wildcat and a Vulcan both 25 cal. Both are working at almost identical velocities. I use a ballistic coefficient of 0.036 in strelock pro which is the default value for jsb kings. At 100 yards strelock suggests a holdover of 3.5 mildots. my Wildcat hits exactly at 3.5 mildots but my Vulcan hits half mildot higher i.e. at 3rd mildot. I had to correct the bc to 0.048 in strelock to get the holdover corrected for Vulcan.
So the question does ballistic coefficient vary from barrel to barrel?


Did you take the height between the center of the scope and the center of the barrel into account? This also makes a small difference. I don’t know if this makes a difference of 0.5 mildot.

And BC value will indeed vary with barrels.