I purchased a 17 Hornet S die set about 3-4 years ago, which excessively sized down brand new cases to the degree my whole reloading room was shaking from my trying to get it to size one piece of brass! Crap falling off shelves, it took me 5 times of partial sizing, with lubing it over and over. I sent them back to Midsouth, I took a loss with a substantial restocking fee, but I just thought these were so poorly made.
I re-thought it a couple years later, gave them another shot at it... and purchased the same S die set again. This set was not as bad, but still grossly sizing the case too much. My Hornady die set I purchased in the interim was sizing PERFECTLY. I got ahold of Redding and they honed the sizing die for me. I had to send it in twice, with samples of their brass after sizing, and the Hornady brass after sizing for comparison, and unsized pieces of brass to test their work on, etc. That die is almost as good as my Hornady, but I wanted a bushing die, so it's close enough. Just a pain in the butt.
The customer service / tech guy was knowledgeable and courteous, said they had new people working there and they were struggling with keeping the quality up. I think they are still having quality control issues.
