Range Report True BC

philodox

Sergeant
Full Member
Minuteman
Apr 4, 2007
110
2
48
Athens, Ga
Well, I have decided that I am going to start using a G5 drag factor when calculating ballistic flight trajectories using my ballistic calculator. I've decided to do this because G5 is the most appropriate for boat tail shaped bullets. However, the manufacturer listed ballistic coefficients are inflated since they use G1 drag factors when doing their calculations.

That said, I use a 178gr A-Max almost explicitly. I'd like to know the true BC of this round. Does anyone know?
 
Re: True BC

I have always used .495 as listed and have made hits out to 1300 yards with that number so I would say it is pretty close to actual.