300 AAC Blackout brass, sizing with no expander ball will still improve the neck tension in lots of the latter. For what it's value, sizing brass without the expander ball also goes a good distance towards retaining circumstance necks straight, which normally ends in strong accuracy. We also use third-occasion https://reloading300blackoutaac87308.goabroadblog.com/37822103/300-blackout-brass-options