The .40 S&W shares the same parent/child relationship to 10 mm as the .44 Mag./.44 Spl ... Because this gun is purpose-built to handle hard hitting Magnum loads, 10 mm fans can go ahead and enjoy ...

Indeed, in certain loadings, the 10mm Auto approaches lower end .44 Magnum amounts of energy. But unlike most magnum cartridges, 10mm is designed from inception for use in auto-loading firearms.