TradLife406
WKR
Not enough pressure generated to fully form? Maybe 50gr?
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Avery told me whatever powder at 58 grains. With a relative powder. Advised against n570 because it's harder on the barrel. I ran out of 7828 and used h1000. I used Hornady aero match 105's. Cheap and shot stupidly good!
But use at your own discretion.