Cortland, NY….. The 10mm is back and is flatly a great cartridge. There are a host of new guns devoted to purely performance and accuracy, and Redding has added a Premium Expander Die to up your 10mm reloading game.  The Redding Premium Expander Die uses a specially designed and Expander Plug coated in Titanium Nitride.  This is a high quality industrial hard coating well known on high-grade machine tools.  TiN is hard, very slick and dramatically reduces brass transfer during the expanding process. This new Expander also has a tapered lead entry making it ideal for use on high volume progressive machines as well. 

The design of the expander itself is where the true advantages lie. The Redding Expander has a unique set of properties, which act on the case. First a radius on its base eases entry into the case mouth.  Next a parallel expander section expands and true’s the case internally to create a perfect bearing surface for the bullet as it is seated. This also adds a more uniform bullet pull and start pressure as well.  Next is a small step, to properly align the bullet with the centerline of the cartridge case. This positions the bullet for proper contact with the seat plug, adding uniformity during actual seating process. Lastly, a flare is the final step on the Redding expander plug to further open the case mouth when using cast bullets so that they do not shave lead during the seating process.

Redding Reloading Equipment has focused on building the finest quality, American Made products for the precision handloading market since 1946. To learn more about our ongoing commitment to the precision handloader and to request a copy of the new 2018 Redding catalog visit: www.redding-reloading.com