.450 MAGNUM EXPRESS – We use only the highest quality bullets and components possible for all our ammunition lines. This cartridge is really historic and very capable. Ballistically it is the twin to the 454 Casull. We had special dies created to our specifications. This allows us to get a really good “seat” & “factory crimp” since we cannot roll crimp this cartridge. This cartridge is capable of taking any Game animal on Earth. If you are not familiar with this cartridge. If you venture over to singleactions.com (a forum), a gentleman and very talented gunsmith Lee Martin of Arlington Virginia wrote a wonderful article basically laying out the history and ballistics of this cartridge. If you have any questions regarding this cartridge and or ballistics, please contact us we are here to help.