This is a one-piece, non-adjustable cylinder-type gauge for checking fired and resized cartridge cas
Used to compare cartridges against the minimum and maximum SAAMI cartridge dimensions
The item description will indicate if the headspace gauge is Adjustable
Drop a fired case into the gauge. Take a measurement on headspace.
Now once the initial measurement is taken, slowly dial in the full length sizer until there is a 0.
Description
The Cartridge Case Gage was designed with safety in mind and was invented by our founder Sam (L.E.) Wilson in 1935 after a fellow shooter approached him for help in solving a case-separation issue. The gage allows you to see just how much you are sizing back your shoulder on your cases. This is best done by measuring a case in AS-FIRED condition. Take a measurement. Then place back in the gage to see just how much you are sizing the shoulder back. Finally, adjust sizing die accordingly. After sizing your cases, there is a good chance the brass will lengthen. The gage will also check min/max case length and will point out the need for case trimming. This is an essential tool for every reloaded.