Litz figured the G1 at .572
I know, he posted on my thread. If I used his figure, I'd miss at distance.
Not saying he's wrong, but my results were/are repeatable......
I personally think that the BC of a bullet is a bit variable beyond even the G1 being velocity dependent. There is the issue of twist rate being enough to stabilize for accuracy but not enough to get the max possible BC, there is the rifling style of the barrel and the condition of the barrel that are changing the shape and surface finish of the bullet, and there are lot to lot variations in bullets. None of this will show at 400 yards, but it can be seen at 1000.
That said, using Litz BC numbers for Bergers and velocity from a Magnetospeed, I've been within .1 mils of the data Shooter gives me out to 1100 for the last three bullets I worked up. Which is handy, but it's usually no big deal if you have to tweak the program to get things aligned at range.
