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What Powders Are Best For Subsonics???
I am geting ready to start loading subsonics for my 300-221 AR that I just finished and am wondering what powders will give me the best results? I will be using 180 to 240 grain bullets through a 16in bbl, and it will have a suppressor on it(if that makes any diff). Also any good load data would be greatly app!!!
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