Thread: What's the Deal?

Originally Posted by L.R

At 2644fps I doubt if the G7 bc will be working out at .299. Also whats your scope?

You have to drop it to below .200G7 (no way it's that low, considering that they're averaged over velocity range to account for change and G7 drag model changes very little over a large range of velocities ie, the whole point of using G7 instead of G1) to get the .8mil difference

Originally Posted by gimp

You have to drop it to below .200G7 (no way it's that low, considering that they're averaged over velocity range to account for change and G7 drag model changes very little over a large range of velocities ie, the whole point of using G7 instead of G1) to get the .8mil difference

I agree that the G7 wont be that low, however it is something to look out for if you are running bullets slower or faster than their "usual" speeds. G7 is velocity dependent although not as bad as G1.

Looking back across your data Normie it most likely is a velocity error like others have said. Your load is what i use in a 6.5x47 so will be rather slow out of the much bigger 260 case.
You are welcome to borrow my Oehler if you like to check you velocity again.