The 480 Ruger is 325gr at 1350 fps. It's not a wimpy round by any means, but it is not as powerful as the 454 Casull. The 480 Ruger is a shortened, lower pressure version of the 475 Linebaugh. The reason for Ruger to make the 475 kurtz is so that they can fit six rounds into the Super Redhawk; at Linebaugh pressures you have to drop it to five shots to keep the cylinder walls thick enough. IMHO, the main reason for it is for Bill Ruger to get his name on a caliber before he retires.