.458 high BC bullets ?

[lwh723]

Not quite as high of BC as you want, but might be something to consider. But will expand in the velocity range you want. Working on a 335gr version, but that probably won't be available until at least January.

ASG LLC - 310 APB

 

[Greasyspork]

Thanks, that's pretty close to what I'm looking for, I plan on calling him Monday.