Just received my latest acquisition from Miha in Slovenia. Recently acquired a 1975 S&W Model 25-2 with the typically large throats they are known for, so wanted another .455" mould for it and my 25-5 as well.
Designed for the Webley, it is basically a .455 inch hollow base wadcutter with a crimp groove. Should work well.
Actually that last bullet is a 454423, designed by Elmer Keith for the .45 Auto Rim cartridge. With the 97 Pb/2.5 Sn/0.5 Sb alloy I use, they come out of my mould at 224 grains. Here it is on the left having come out of my Colt Gold Cup at 800fps.