If one powder and projectile primarily for subsonic hundreds turns out to work for .three hundred Blackout that would be excellent. If it turned out to that CFE 223 could fill that part that might be the best of all worlds. The 5.56 NATO origin story runs with the turbulent https://brass-300-blackout63040.blogtov.com/19555234/the-ultimate-guide-to-300-aac-brass