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One piece gage that will check overall length to indicate the need for trimming, datum to head length to assure correct headspace and to prevent over sizing. Available for most popular rimless cases. The Cartridge Case Gage was designed with safety in mind and was invented by L.E. Wilson's 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. Resize case on current die setting. 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 reloader.

Note: Does not measure body diameters.  This gage is intended to be used with fired cases to determine a basis for full length sizing and trimming.

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2 reviews
Case Guage
Review star icon Review star icon Review star icon Review star icon Review star icon Apr 23, 2018
Couldn't find a 6mm case guage anywhere. Creedmore had it. Arrived quickly and solved my problem.
Franklin Shivers

Excellent for semi auto reloading - a must have
Review star icon Review star icon Review star icon Review star icon Review star icon Feb 7, 2018
If you are reloading for semi autos you absolutely need to use these gages to insure that you are producing safe ammo. When i started reloading, a few years back, I had some jams and it turned out the cases would not fit into the gages. (I got really really lucky and did not get hurt) Usually the sizing issue was in the area of the case neck, or in the base. I check the case right after the sizing operation to eliminate bad cases. Then a second time (again) after everything has been reloaded. To date after using these gages i have never had a jam after 1000s of reloads through a .308 and 100s thorough a .223. Another tip for you semi auto reloaders: Use the small base dies for the resizing operation. That will reduce the number of rejects.
billy bob

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