223 rounds for my AR. I want to use Hornady 150gr BTSP bullets, but can’t find any facts to assistance that. Practical experience tells me the 550 press prefers a ball type powder. Any thought wherever to start out? Given that the 300BLK was initially suitable for the AR-15 and https://manuelznzku.estate-blog.com/37857383/the-5-second-trick-for-300-blackout-cases