223 rounds for my AR. I want to use Hornady 150gr BTSP bullets, but can’t obtain any data to support that. Expertise tells me the 550 push prefers a ball variety powder. Any thought the place to start out? Escalating up with a secluded farm in rural southeast Kansas, Ryan https://reloading300blackoutaac53962.dailyhitblog.com/44352241/the-best-side-of-300-aac-reloading