Key features

• •MEASURES CASES WITH FLASH HOLES AS SMALL AS 0. - The Redding Case Neck Concentricity Gauge is a great tool for reloaders to use to sort their brass by thickness and uniformity of case necks; many of today's top competitive target shooters measure and sort their brass for consistency and uniformity trying to get everything with their ammunition to be the exact same
• •ACCURATE MEASUREMENT - This tool allows you to accurately measure the neck wall thickness of the cartridge case and determine its uniformity; two mandrel sizes are supplied to allow measurement of all cases from .17 cal. to .338 cal. including cases with small (.060) flash holes
• •FEATURES - For your convenience the mounting base allows direct attachment to your reloading bench, or use the Redding No. 30520 double "C" clamp; pilot stops are required for each caliber; two pilot stops are supplied with the tool, #06121, .22 cal. and #06130, .30 cal.
• •CASE NECK UNIFORMITY - Uniformity of case neck wall thickness is an indication of the quality of the cartridge case itself; any large variation (over .0015") in neck wall thickness will generally indicate a similar or greater variation in the body and shoulder of the case; this variation cannot be corrected
• •INCLUDES - A separate pilot stop is required for each caliber - comes with 22 caliber and 30 caliber pilot stops; each pilot stop is CNC machined stainless steel, slightly undercut for a snug fit in the case mouth and smooth accurate indicator readings