The L.E Wilson Adjustable Case Gauge is a tool designed to check overall length (min/max) of belted-magnum cases to indicate the need for trimming and, when used with the L.E Wilson Case Gauge Depth Micrometer, this Adjustable Case Gauge checks the datum-to-head length to assure correct headspace and to prevent excessive re-sizing of the cartridge case.
While the belt provides support for proper head-space, the life of the case will drastically shorten unless resizing is held to a minimum at the shoulder. These gages, which can be adjusted to be used with individual rifles of the same caliber, will enable the hand-loader to control the amount of resizing simply by measuring a fired case.
|338 Win Mag
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