223 rounds for my AR. I wish to use Hornady 150gr BTSP bullets, but can’t come across any data to support that. Encounter tells me the 550 push prefers a ball variety powder. Any plan the place to begin? Growing up with a secluded farm in rural southeast Kansas, Ryan https://brass300blackout14062.ltfblog.com/37535123/the-best-side-of-300-blackout-brass