Hornady's universal shell holders are precision machined from solid steel then heat treated to perform flawlessly for the life of the press. Improvements include a wider mouth and a rounded edge at the opening to allow smoother case insertion. They fit all other Hornady accessories including the Case Trimmer and Hand-Held Priming tool. Hornady shell holders also fit most other brands of reloading presses. This shell holder works with; 219 Zipper, 5.6X52R, 22 Savage HP, 25/35 Winchester, 7X30 Waters, 30/30 Winchester, 30/30 Ackerley Improved, 30 Herrett, 32 Winchester Special, 8.15X46 R, 357 Herrett, 38-55 Winchester, 375 Winchester, 7.5 Swiss, 32/40.