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H&N slugs going massive

What is the listed BC's for these new weight range of HN slugs?

Our R&D manager made a test campaign last Friday and calculated the following BCs:
38 grain: 0.114 (v0: 1010 fps)
40 grain: 0.120 (v0: 1000 fps)
42 grain: 0.124 (v0: 980 fps)
44 grain: 0.128 (v0: 965 fps)
46 grain: 0.133 (v0: 947 fps)
The velocities were measured with a labradar.
Drag model: G1.

Best reagrds