I had to press a high antimony 535 gr 458 out of a Star die once. I made a series of pushers from bolts with their heads cut off that were smaller in diameter than the bore of the die and pushed it back out. I heard the bullet creak partway through and stopped immediately. I couldn't remember if Star dies were hardened or not, so I didn't simply throw the die with the bullet stuck inside into the lead pot. In retrospect, even if I had annealed it in the pot I could have just oil dropped it I suppose. I bent a couple of Star handles before finally deciding to go to push-throughs.