I could probably strike my .355's with a light-weight hammer rather than set them back. All of that to state that with the actual 9mm die you should get plenty of neck rigidity. Cats, puppies and other animals seriously are afflicted by that. I figured out shooting sizzling 45 rounds https://9mmbrass86217.wizzardsblog.com/36789545/helping-the-others-realize-the-advantages-of-9mm-reloading-bullets