Like BLUE RIDGE BRASS!! I get all my 40 cal (dirty due to the fact I hold the sources and can certainly clean it myself) instances from Blue Ridge Brass! I get it because of the 4,000 at any given time and haven't had a 10mm scenario inside the bunch, https://dallasxitcl.dbblog.net/11518940/what-does-40-s-w-once-fired-brass-mean