Promised that I would give a report on my antelope hunt using the GS 177gr .308. I shot 2 does. One at 650yrds and another at 762yrds. My drops were right on with the drop charts using the advertised bc's. Had a discussion w/ Gerrard of GS bullets and he explained to me the difference between the old style bullets and the new style. The old style the first drive band is a vertical standoff from the shaft. The new, incorporates the 1st drive band as part of the flare of the ogive. So far the new ones that we have shot run with the advertised bc's. Steve PS The terminal performance was as I expected from prior use.