The WG chambered for .476 Enfield is definitely worth getting. It's easy to load for - some WG pistols will take unmodiifed 45 Schofield brass, and some will need the rim thinned a bit. 45 colt brass fits in some of them, but most need to have 45colt brass trimmed back a bit, and the rim may need to be thinned as well.
My 476 WG takes unmodified 45 Schofield brass just fine. I load Unique powder and soft cast hollow based RN .457" (almost .458") bullet that shoots very well in .476 Enfield chambered guns. Soft cast flat base .454" bullets shoot fairly well in mine, too. If you get a WG feel free to PM me for loads, etc.