We do not have a standard product powder through expanding die for the 300 AAC Blackout. These dies are not designed for the bottleneck style of case. Here is a list of parts that can be ordered to put a die together that can be used with the 300 AAC Blackout:
SE2398 357 MAG Powder Through/Expanding Die Body
SE2291 30 M1 Expanding Plug
SD4239 Lock Ring
SD2153 O-Ring (for Lock Ring)
SE2168 Funnel Adapter
AD2299 O-Ring (for Funnel Adapter)
Care must be used in setup and adjustment of the die to ensure you do not crush the case.
