I am trying to get Strelok updated with the Hades. It does not appear to correlate to what I am seeing but I am not sure about the exact procedure to verify myself.
The BC is a dynamic value. It will vary with velocities, A>B distances, twist rates, et al.
Can you provide more insight and details into what you're trying to do and what you're having trouble with?
Are your Impact and Crown barrels different in length?
The 0-30y BC may very well be 0.033 - 0.036, and a 0-100y BC of 0.026 seems possible to me for that projectile.