L.E. Wilson Cartridge Headspace Gage 8x57mm Mauser (8mm Mauser)

Product #: 345548
| Manufacturer #: 8X57
Status: Available
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These gages measure the length from the base of the cartridge to the shoulder, as well as maximum case length. This process shows if your rifle ammunition is being produced within industry specifications.

Technical Information

Material: Steel
Features: Precision Machining

Notes:

  • This is a one-piece, non-adjustable cylinder-type gage for checking fired and resized cartridge cases for cone-to-head and overall length
  • Used to compare cartridges against the minimum SAAMI chamber dimensions
  • The item description will indicate if the headspace gage is Adjustable

    Instructions:
  • Drop a fired case into the gage. Take a measurement on headspace. This can be done with either a depth micrometer or caliper (Depending on if the case is sitting high or low in the gage). If the case sticks out past maximum headspace the firearm probably has a larger than average chamber. The gage can still be used because it is being used to determine how much resizing is required.
  • Now once the initial measurement is taken, slowly dial in the full length sizer until there is a 0.001 to 0.002 drop in headspace. This will give the measurement to resize the case just below the chambers headspace in the firearm being reloaded for, giving a more accurate shot and saving brass by not causing it to be overworked.
  • Once the brass has been sized, set the brass in the gage and set the gage on a flat surface with the head side facing down. Now look across the top of the gage, this give the maximum and minimum for trim length.

    • Application Charts & Information

    Overall Rating:
    5 out of 5
    Used this Product?Rate It
    5 stars
    Robert Demattei of San Ramon, CA
    Date posted: 4/27/2005
    I have used LE Wilson case gauges in several calibers and I simply cannot say enough good things about them. Simply drop your finished round in one and it tells you immediately if the case neck is too long, the headspace is incorrect, the primer is seated properly, and if the case has an improper buldge somewhere it shouldn't. So much safer than running each one through your handgun or rifle and you know when you drop that round in the box, that it is ready to go. No surprises on hunt day or at the range. I ended buying one for every caliber I handload and that is quite a list. I make the case gauge as part of my final checkout of the loaded round. Wipe it down, run it into the gauge, and slide the finished round in the box.
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