Re: B.C. Variance
I'm not familiar with the Oheler program so you will have to draw your own comparisons. The Serria Infinity program allows you to define a bullet if there isn't one already in their library. You can put on diameter, weight etc., then you can put in up to 5 BC values and the threshold values for velocity where the BC will change. Generally the lower the velocity the lower the BC. My guess by looking at the values that they post for their own bullets is that you would get a curve if they were plotted. I don't shoot exotic bullets (LRB etc) so I just use what is in the library.
If you do get the software make sure you go to their site and down load the update. It takes a while to download 2.3M but it is worth it - more in the library, more features and runs faster.
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