I've been following the various testing that Sabotloader and others have done on the Gold Dots. I did some searching for specs for various Speer bullets and found this brochure.
http://glarp.atk.com/2006_Catalogs/SpeerBulletsCatalog.pdf
.233 bc for the 300 GD is amazing! I'm kind of thinking about trying these out, as I may get to hunt elk next year. The 250 grain version is merely .175 bc. Seems that the 300 would be some pretty good elk medicine even out to 150 yards.