Ah, then as I understand you, that shape of the _curve_ IS the reference drag "law" or model as you state, GA, GA2, RA4, G0, G1 or whatever.
Thank you Sir, I think I understand a little better what those Reference models mean.
And it helps me understand this other thread on an "other" board, particularly about the different Reference law/models used for particular BC values:
Cast Bullet Database - A Work In Progress, Air guns, Airgun Forum
www.gatewaytoairguns.org
where in my infantile understanding, different BC values could be used for different Reference models.
As Mr. Bob said, "NOTE, YOU CANNOT USE THE G1 BC WITH THE GS DRAG MODEL, OR VICE VERSA".
So, which is most accurate? I guess I'll have to test this!
And, wouldn't it be great if the pellet designer/manufacturer would quote their assumed drag model?
Thanks,
Mike