You have to decide whether to treat a plated Gold Dot as equivalent to a JHP. Alliant lists Golden Saber for 200 gr and Power Pistol. Personally, I would until I got to hotter loads. Then I would have to start lower than my goal and then run test batches. The suggestion of 7.6gr seems right on to me, but I don't know why I would not use Power Pistol. I have a lot of it along with other choices and intend to use every grain, although more on .45 Colt, 9mm, and .40 S&W. I prefer HS-6, 8.6 gr with a magnum primer, noting that my Taurus 431 is neither big nor heavy.