I have confirmed BC out to 1000 yards several times. That's about where it goes sub-sonic in my 284win. The lowest I've come up with is .232 and the best was .238 G7. All done in varying atmosphere conditions. Spring, summer, and fall/early winter.Curious to know what BC you used for this bullet and how far you confirmed drops. I shoot this same bullet in my 7STW. My local range is limited to 300 yards. Kestrel lists its G7 BC at .237 while Hammers website has the approximate BC as .313.