Have not been able to find G7 numbers at slower speeds. Ideally between 3100 - 1350 FPS.
Does anyone have a source, or the values?
Thank you in advance!
Does anyone have a source, or the values?
Thank you in advance!
Berger 105 Hybrid - BC @ multiple speeds?
- Thread starter Wheres-Waldo
- Start date
what exactly are you trying to do? i run the numbers on my kestrel from the library and its dead nuts out to 1200yds.
I use KAC BulletFlight and the G7 for that bullet is listed as .278 is accurate based on what Berger publishes.
The issue is that it does not have the values listed to track BC through velocity drop.
I can input them manually if I had the BC & applicable velocity.
The issue is that it does not have the values listed to track BC through velocity drop.
I can input them manually if I had the BC & applicable velocity.
Hes asking about the banded BC values like sierra publishes
The g7 is a standard, the BC value you enter is a factor that your ballistics program then applies to try and line the standard up with your actual firing solution. Youre trying to line up the curve to match. That BC value changes depending on velocity and is not a constant thus the benefit of bracketing the factor you apply to even more closely line up the curve.
The g7 is a standard, the BC value you enter is a factor that your ballistics program then applies to try and line the standard up with your actual firing solution. Youre trying to line up the curve to match. That BC value changes depending on velocity and is not a constant thus the benefit of bracketing the factor you apply to even more closely line up the curve.
Basically, the G7 model Drag Curve matches the Berger 105 gr Hybrid Drag Curve very well. That's why you really don't need to break it up into velocity bands.
If you would like to get a better prediction during the Transonic region and Sub-Sonic region a Custom Drag Curve would be desired.
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