Three hundred AAC Blackout brass, sizing with no expander ball will nonetheless boost the neck tension in plenty of the latter. For what it's well worth, sizing brass with no expander ball also goes a great distance towards keeping case necks straight, which typically ends in strong precision. Persist with https://300-blackout-cases96295.fireblogz.com/70132703/300-blackout-bullets-for-reloading-can-be-fun-for-anyone