BC for .338 285gr Amax bullets

[DTRG42]

Hi

I have started using the 285gr Amax bullets in my Lapua. They shoot EXTREMELY well. 0.15-0.5 MOA at 1000 yards.

I am just struggling to find the true BC. Horndays G1 of 0.778 is definitely not correct.

What are you guys using in your calculators? Anyone using the G7?

Thanks

 

[406precision]

G1.738
g7 .377

information provided by applied ballistics

 

[bdpayne2000]

I agree it is more accurate out of my Lapua the SMK or Berger OTM's. All shoot well but the AMAX is more accurate.