I haven't fire formed any brass for nearly 50 years, but back then I fire formed a lot of brass for 6mm Remington using 17 gr. of Unique, Malt-O-Meal filler on top, and a plug of melted sealing wax. You can use any primer that fits the pocket, so if you have a store of primers you don't normally use for your normal loads, this would be a good application for them.Ok .. lead is to expensive to wast ..
I need a fire forming load for my 35-300 .. let's just say 356.. to simplify the situation. I wanting to use 700x and say cream of wheat. . I have plenty of ..
Sure don't like the thought of wasting a primer. .
Contact Bruce Finnegan on the MDWS group page on FB. He has a whole line of wildcats, and has had hydroforming dies made up for several of them. They work very well. Just like fire forming with cereal however, you still have to run a full power start level load at a minimum to fully blow out the angles and body. Hydro forming is useful for converting cases that would require several steps of regular mechanical forming. It also has the advantage of forming case walls and necks more uniformly than mechanical forming can do, in many cases completely eliminating the need to turn necks to even out wall thickness.JBelk. . I've been curious about the hydraulic case forming myself. . And have had a few ideas of a home made setup.
I attended a class once where we were introduced to hydro forming