So would I take 3% of 401, 389, and enter that as the G7 number? I just looked at the Hornady site where it lists the bc for the eld bullets at different speeds. If I look at the Mach 2 speed and the two twist rates listed and take a guess at what a 9.5 twist would be, I get about 360

https://www.hornady.com/support/ballistic-coefficient

The never-ending flight
Of future days.
Paradise Lost. Book ii. Line 221