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Old 01-30-2017, 10:04 PM   #6
BigTinBoat
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Join Date: Jan 2017
Posts: 41
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Quote:
Originally Posted by justmecurtis View Post
Within Chairgun pro app there is a BC calculator. If you know the velocity and the drop at a given yardage it will calculate BC.

Chairgun pro is a free app on Itunes

I would also recomend a paid app called StrelokPro. By far the best ballistic app I have tried it also has a BC calulator.
I actually have the Strelok+ on my phone. I think this is what I will wind up doing. I will use my brothers bore sighter and set it for like 50yds. I will then shoot it at 100 and calculate it.
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