These are priced at 50 per package. The 450 Adams revolver round is a forerunner of the 455 Webley. It is referred to by a number of names, .450 Boxer Mk I, .450 Revolver, .450 Short, and .450 Mark III and sometimes as the .45 Webley. These case are not headstamped and are a nominal 0.69″ long. Shipping weight is 290 g/50 cases.