Holmes it started life as a mould for a 460 Wearherby that had been mis cut, its set up for a gas check, but I don't use them, just grease and over powder wads, and the drop tube and pressure seater.

The slug itself is about 2"

Haven't tried paper patching yet, but have begun reading up on it, Have been playing with the idea of having the gas check portion milled off, to have just a flat base