I've mixed inner thoughts with regard to the Lee die established. The initial Value would make them glance less expensive BUT ultimately, right after having to buy a independent expander die (IMHO, you need an expander die because it would make putting the bullet into the case a no brainer) https://300-aac-reloading64386.bleepblogs.com/38162360/the-5-second-trick-for-300-blackout-cases