Like BLUE RIDGE BRASS!! I get all my forty cal (soiled given that I have the means and can easily clean it myself) circumstances from Blue Ridge Brass! I get it from the 4,000 at any given time and haven't experienced a 10mm case in the bunch, nor a 9mm https://oncefired40calbrass18417.blogsvila.com/38658328/40-s-w-brass-for-dummies