Doublegunfan,
How did the proof loading turn out on your Beretta 411? I am still interested in your project. I'm afraid we kind of hijacked your original thread with some of our own opinions. Did you proof the Beretta with 30% overloads for the 444? That is a great cartridge but I would be leery of shooting hot loads in it. What ever you end up using as a service load, you need to mark the barrel flats with the information. That may keep someone in the future from using something higher in pressure than what you proofed your gun for. Bob