My Old man bought a lot of reloading stuff like 2 years ago, it came with almost everything you need to start lead casting. One of the things he ended up with was everything to cast/lube/load .38/.357. One thing that is missing is what I believe to be the inside part of the crimp die. Can I shoot a .38 special bullets that have not been crimp just tightly seated? It would be in a revolver. Also can I buy the inside parts to RCBS dies?