223 rounds for my AR. I want to use Hornady 150gr BTSP bullets, but can’t find any facts to assist that. Practical experience tells me the 550 press prefers a ball style powder. Any plan in which to start out? Certainly one of two instruments I find indispensible, not together https://josuezmxia.blogoscience.com/45521605/the-single-best-strategy-to-use-for-300-blackout-projectiles