.454 Casull
（重定向自Casull）
The .454 Casull (/kə sul'/) is a firearm cartridge, developed in 1957 by Dick Casull and Jack Fullmer. It was first announced in November 1959 by Guns & Ammo magazine. 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 (very similar to the relationship between .38 Special and .357 Magnum cartridges as well as the .44 Special and .44 Magnum cartridges).