[cycloneman]

Here is the senero. YOu have the sizing die set with the lock ring. YOu use it here and there and years go buy and you simply run the die into the press untill it hits the lock ring. Well eventually you will loose your adjustment. You must install that die to specification and relock the ring each and every time you use it. Failure to do so is what causes these types of problems. I bet money on it. I have seen it too many times.