BC calculation

[Spud]

Does anyone know the Bal. Coeff. for the Lee 430-310-RF boolit? I tried a BC calculator on another site, but couldn't make it work My boolits are averaging @307 grains. Just looking for a rough, ballpark figure. MV of 1255 FPS. Thanks.

[462]

According to Lee's mould catalogue, it's .218

[Spud]

Thanks, 462.

[462]

My pleasure.