Hey guys, I'm having the toughest time with this die. Perhaps I dont know how it works but I keep ruining my brass when I'm trying to neck size. I am currently using the resizing die on a RCBS Rockchucker. I have it seated as follows. 1. Tighten the top (which controls play on the bushing) until it locks up, I back it out 2 turns. 2. The die is seated in the press until it hits the shell holder. I then back it up 1/4 turn. 3. I lock everything down. My cases are lubed but still get crunched inside. what am i doing wrong?! I checked the bushing. It is indeed for .308. Could it be an issue with the bushing?