Three hundred AAC Blackout brass, sizing without the expander ball will nevertheless improve the neck stress in lots of the latter. For what It truly is truly worth, sizing brass without the expander ball also goes a good distance towards holding case necks straight, which normally ends in stable accuracy. https://reloading300blackoutaac77498.loginblogin.com/46946637/the-5-second-trick-for-300-blackout-cases