I use Harrells dies and am very satisfied with them but I am not sure if you can call them custom dies. It is my understanding that they take the 3 cases you send them and they match them up as close as possible to various dies they have machined in your particular caliber to give you a die that is very close to if not exactly the one you need. They are extremely accurate for the price.johara1 said:Send three fired cases to Harrells and get a custom die for less than you can buy a off the shelf die from Redding or other makers. The best part if you don't like what it does he will replace it with one that does…….. jim