the use of 4F powder in magnum cartridges
im curious if any one here has tried using 4F powder in magnum cartridges such as .357 mag, .44 mag, .460 mag, or .500 mag? I would think 4F powder would still yield lower pressures then the high end mag loads for these cartridges but it would get you closer then a case full of 3F. the fouling would also be lighter which is always a bonus. I don't currently own a gun in a magnum cartridge so I wont be able to try this myself any time soon but a .357 magnum SAA revolver is on my list.
so any one tried it?
-matt