I heard from Accurate Arms today as to why the varience. He said that when western powders bought accurate arms they re-ran all of the 9mm loads with new testing equipment, and different components. They also reduced the min AOL which resulted in higher pressures. In a nut shell the new data in...
I just picked up some AA#7 to load up some 9mm rounds with a 125 gr, cast bullets. While checking my load data I found a huge difference in what my books say and what Accurate Arms Data says from their web site. For instince, my book says starting load is 7.5 gr and the online data says 5.7 gr...
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