Maybe Ruger could do a .500 JRH? Its 1.4" long, in the popular .500" caliber. They won't have to design a new frame. I had a .500 Linebaugh SRHK a few years back, and although mine was a 5 shot, maybe Ruger could still fit it in their SRHK??? But then again, its somebody elses name on the brass? Like the .480, Ruger might go with a case longer than the Corbon .500 Special, and shorter than the .500 JRH, and put their name on it?