I created an excel spreadsheet with all the conversion kit pieces arranged by caliber. More than 188 different calibers cross referenced. It makes it really easy to see what ammo you can reload based on the kits you already have or what pieces you need to buy without buying a complete conversion kit. Just shade the cells of the pieces you have and see what shakes out. I have 6 conversion kits and found that I have all the necessary components to load 33 different calibers. If you would like a copy PM me with your email and I will be happy to send it to you.