Hey all, im running into a problem here. I managed to find a bag of 100 pieces of new Sig 45 auto brass. My normal routine with new brass is always running it through a sizing die just to make sure, then load as normal. I ran all them through the sizing die and when flaring, they are extremely hard to remove from the flaring die, almost to the point im afraid I'll bend my press handle. It takes quite a bit of force to get them out. I took my flaring die apart and cleaned it, and flared a couple pieces of random mixed brass and it seemed fine. I can't visually see anything wrong inside the case mouths either. Im using the lee 4 die set FWIW.
Thanks