Originally Posted by bill123
I agree. Had the same problem because I sized and expanded cases in a large batch and then let them sit for about 1 month. Try expanding just before seating. Maybe cases are ready for annealing?
New to reloading here...what you said makes sense but brings to mind a question. If you are not turning necks, would you expand the necks? And if you were tuning necks, would you neck size after turning, or neck size, expand, and turn?
If expanding the necks without turning, would you expand and then neck size? Or neck size and them expand?
From what I have read, the only time you would expand the necks is prior to turning, but curious to hear about your method if it is different.