223 rounds for my AR. I choose to use Hornady 150gr BTSP bullets, but can’t locate any facts to help that. Working experience tells me the 550 press prefers a ball form powder. Any strategy exactly where to start out? Just caution when hunting with .three hundred Blackout subsonic rounds. https://trentonepzjs.ageeksblog.com/35840817/top-latest-five-300-aac-reloading-urban-news