I have the Hornady custom dies for .260 Rem, and when I use the ELD bullets in it, I get the same ring. I went to buy an ELD stem, but no one has them in stock for .264 cal that I can find. I read on a Facebook reloading page, to use really sandpaper on the stem and it will go away. I have some 1500 grit sandpaper I plan on using on it.
