Like BLUE RIDGE BRASS!! I get all my forty cal (dirty due to the fact I have the methods and can certainly clean it myself) instances from Blue Ridge Brass! I get it because of the four,000 at any given time and haven't experienced a 10mm case inside the bunch, https://connerekqxb.suomiblog.com/indicators-on-reloading-40-s-w-brass-you-should-know-54922280