300 AAC Blackout brass, sizing without the expander ball will continue to increase the neck rigidity in loads of the latter. For what It really is worth, sizing brass without the expander ball also goes a great distance towards retaining circumstance necks straight, which commonly results in sound accuracy. His https://300-blackout-once-fired-b40369.aioblogs.com/91461329/fascination-about-300-blackout-projectiles