My brother gave me a bag full of bullets that were exposed to excessive heat while in a house fire. I managed to pull some out with a kinetic puller except for the 40 S&W rounds. The powder went bad. And I gave up trying to pull them. Instead, I used a bolt cutter to cut them in have. Sometimes, the case would tear open at the mouth and release the bullet. The rest will be scrap lead. I also tried cutting the separated case with the head in half again. This set off the primer so it's best to cut the casing in half closest to the bullet or in the middle.