223 rounds for my AR. I wish to use Hornady 150gr BTSP bullets, but can’t locate any information to support that. Experience tells me the 550 push prefers a ball form powder. Any strategy where by to start? This load was incredibly accurate, besting by far the most exact manufacturing https://300aacreloading29528.bloginder.com/39734167/what-does-300-aac-brass-mean