Manufacturer #: 390575 Precision machined from solid steel then heat treated to perform flawlessly for the life of the press. They fit all other Hornady accessories including the Hornady Cam-Lock Case Trimmer and Hand-Held Priming Tool. These shellholders will also fit the presses of most other brands in the industry. Please see the Technical Specifications or click the link below for specific cartridge fit information. For more information please consult our Master Catalog or call our friendly customer service for assistance. Fits the following calibers: a 223 Winchester Super Short Magnum (WSSM) a 243 Winchester Super Short Magnum (WSSM) a 25 Winchester Super Short Magnum (WSSM) a 270 Winchester Short Magnum a 7x61mm Sharpe & Hart a 7mm Winchester Short Magnuma 300 Winchester Short Magnum a 325 Winchester Short Magnum