The L.E. Wilson 50 BMG Case Gage provides a precise way to measure headspace and case length on .50 caliber brass. This one piece gage checks the position of the case shoulder and the overall case length to help reloaders determine proper sizing and trimming needs.
Originally developed in 1935 by L.E. Wilson to prevent case separation issues, this gage remains an essential safety and accuracy tool for any .50 BMG reloader. By comparing an as-fired case to a resized case, you can see exactly how far the shoulder is being pushed back and adjust your full length sizing die accordingly.
Note: This gage does not measure body diameters. It is intended for use with fired cases to establish proper full length sizing and trimming practices.
Case Gage Instructions: Download Here
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