.223 pressure Gold Dots from a 14.5" barrel

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Originally Posted by WS6

400 yard ballistic regression is done. The 150gr .308 gdsp listed as 0.414 turned 0.322. This roughly 20% inflation is typical of what my source has seen in other caliber gold dots across the line...and flatteringly...0.32 is about what I regressed the 75gr to on a 100 yard range...

http://master.scout.com/military/sni...sing-bc-s-help

I'd put money on the 75gr gdsp being an honest 0.32g1, or close to it.

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That's sad to hear. I've only shot them out to 300 yds with LPVs and RDS and the 75gr GDSPS seem to hold with 75gr hornadys at least to that distance. But just looking at the shape the boat tail is much less pronounced and the ogive much fatter on the GDSP so .320 maybe correct.