Regardless of the sizing die you use, you must test to see if there is enough neck tension to prevent bullet setback. Load a round, measure it carefully, and then press the bullet tip of the loaded round against a flat surface. Not hard enough to deform the bullet, though. Remeasure the OAL to be sure the bullet has not moved back into the case. As has already been stated emphatically, ANY bullet setback can cause major issues with these loads.
now i see what you mean by setback. originally i thought it was the round not going in the barrel far enough due to sizing of the case. thanks for the lesson