This was posted on Facebook just a little while ago, Video of the 10mm/40S&W brass stamping machine.
https://www.facebook.com/doubletapammo/videos/1047912985286719/ (https://www.facebook.com/doubletapammo/videos/1047912985286719/)
I Posted;
QuoteDouble Tap is making their own 10mm brass now? Interesting! In past years you used Starline Brass, even with your own headstamps.
Their response;
QuoteMcNett's DoubleTap Ammunition Absolutely! We're making 10mm & .40 S&W and have a host of other calibers to follow shortly. There are so few producers of brass in the U.S. that it can make supply & quality control difficult at times. So Mike decided it was time to bring the process in house.
Sounds great, guess I'll support that project 8)
Thanks for the heads up !