Originally Posted by blygy
Can you explain how the hydro form dies work??
They sound like they may be what I'm after.
Incredibly simple actually.
You prime your cases with FIRED primers, this seals the primer pocket, fill the cases with water, insert the casings into the die and put pressure on a caliber specific rod that forces the water to hydraulic the cases to the internal dimension of the dies. The rod can be hammered to generate the force to hydraulic the cases to shape, I am building a press specifically for this purpose to maintain more control on the forming.
After you empty out the water, deprime and bake the brass to get it dry.