Thread: 303 question

hi guys I have a set of fl 303 dies and I have been reading about neck sizing, I'm aware ya can back the fl die off a bit to achieve neck sizing but I had a thought I have a set of 7.62x39 dies there I wondered if I could get away with using the fl die to neck size the 303 case without sizing the body and pushing the neck back.lee neck dies are cheap enough was just an idea. cheers