FEATURES: -Curved model-For all autoloader, lever-action, or pump-action rifles-Also fits all bolt-action & single-shot firearms-Inserts into chamber through ejection port-To use the Lock-N-Load® O.A.L Gauge, you will need a Modified Case (sold separately) to fit your firearm's chamber & thread it onto the gauge-Dimensions obtained will be accurate to .001"
*Not compatible with Adapter "D" or short-bodied cases
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