Hoppes - Bore Guide Universal Tom Thumb Gap between the ears is

Gap between the ears is 13mm (3 stitch or TS)  or 10mm (2 stitch or DS)

most convenient bench mounted priming tool on the market

Standard 7/8ths Reloading Press

or general observation

Type S Dies use interchangeable sizing bushings that are available in

Hoppes - Bore Guide Universal Tom Thumb Gap between the ears isHoppe's Bore Guide Universal Keeps solvents from dripping into action and prevents excessive cleaning rod contact with the rifling closest to the chamber. Three interchangeable chamber tips to fit . 17 to . 416 calibre. Aluminum action collar fits . 695" . 700" (17. 65mm 17. 78mm) diameter bolt actions of any action length. Threaded brass pin locks the guide into the action in place of the bolt to allow proper cleaning from the breech.