223 rounds for my AR. I need to use Hornady 150gr BTSP bullets, but can’t obtain any facts to help that. Practical experience tells me the 550 push prefers a ball sort powder. Any concept where to start out? One particular past note, suppress capturing is really a no brainer https://beauxggzs.bloggazzo.com/37887568/what-does-300-aac-brass-mean