454 Casull 260 Grain FMJ Flat Magtech - 20

454 Casull 260 Grain FMJ Flat Magtech - 20

The .454 Casull (/kə'sul/) is a firearm cartridge, developed in 1957 by Dick Casull and Jack Fullmer. The basic design was a lengthened and structurally improved .45 Colt case. .45 Schofield and .45 Colt cartridges can fit into the .454's chambers, but not the other way around because of the lengthened case.