Agreed, the lack of high BC bullets, or a good selection of any type of bullets for that matter, is what killed the 8mm Rem Mags popularity. I have been toying with the idea of a 338-8mm Rem Mag, also know as a 338 Galliard i believe. This and the 250gr 338 berger VLDs once they come out would make an awsome combo, under the 338 Edge in performance, equaly "cheap" to shoot and better barrel life.
I think that is why there arent many high BC 8mm bulets, the 338s are so close, and there arent any non wildcat cartirdges to really use heavy 8mm high BC bullets.