-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 .001in.
*Not compatible with Adapter in.Din. or short-bodied cases