BC of the current bullet in Federal PowerShoks?

[Snakum]

Trying to run calcs on 150gr Federal PowerShok 7mm Rem Mag. I heard Federal was actually using Winchester Power Point bullets in their Power Shok line, and the ballistics seemed very similar (though accuracy definitely wasn't). But I heard they used Speer now, however Speer doesn't show a 150gr soft point in .284.

Does anyone know what Federal is actually using in their new "red box" Power Shok ammo? Or could anyone hazard a guess what the BC might be for the 150gr PowerShok in 7mm mag?

 

[Snakum]

Never mind ... found it. BC = .373

 

[RyeDaddy]

0.359 is the G1 BC, according to my ballistic program.

 

[Snakum]

Please excuse my considerable ig'nunce .... what is a "G1"?

 

[JimKirk]

Snakum

Here is a good read on BC Form Factors:

http://www.shootingsoftware.com/coefficients.htm

Jimmy K