Dave, The 150 VLD has a .545 BC. I haven't tried the 140's, but there probably a little less than that. I do want to try them. I started with the 150's, thinking I could use the 270 WSM as a back-up for deer and elk.
I have been using the Nosler 140 accubond in my 270wsm with good accuracy results. I tried Richards wildcat 150grn bullets, and could not get them to group at all. The BC of the nosler is advertised at .496. I have found that to be close and not too high. I ended up using about .490 to get accurate drop data in my environment. I also was not impressed with the advertised BC of the berger. with a VLD nose, extra 10grns, and longer boattail, I figured it would be closer to .600, (if the Nosler .496 is close to accurate for the 140grn). I would love to hear some real world drop data at 1k yards.