223 rounds for my AR. I want to use Hornady 150gr BTSP bullets, but can’t discover any facts to aid that. Encounter tells me the 550 press prefers a ball style powder. Any idea where to start out? Stick with published facts only, the sole exception is it really is https://300-aac-brass38638.acidblog.net/70052206/the-5-second-trick-for-300-blackout-cases