I have rec pins etc several times.
Once I called about shells not chambering well after FL sizing in my old 03. I asked the lady that answered for the expert on reloading problems.
She said 'what is the problem' and I thought yuk. I explained to her and she said 'are you lubbing the inside of the case mouth'? I said maybe or lightly. She suggested more lube cause the expander was hard withdrawing and she thought the neck was being stretched when the ball came out.
I tried it and no more problems. I wish Id asked her what calibers she reloads cause she has more reloading experience than just answering the phone.