For what it’s worth, I personally use 6.1 gr. of 231 with the Speer 200 gr. Gold Dot. It works superbly in my Ruger P90. It’s a tad faster than Power Pistol, but I really don’t think it makes a whole lot of difference. I have loads that are just as accurate as the 231 loads but using AA#5, which is slower than both the mentioned powders. If I get dead-reliable functioning and good accuracy, that’s where I usually stop experimenting. A little savings on powder never hurts either.
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