Regulates seating depth and the resulting ?jump? to the rifling for improved accuracy. This model is ideal for all bolt-action and single-shot firearms, or any firearm with straight-line access to the chamber. Requires a Lock-N-Load Modified Case (sold separately) to fit the specific chamber and thread it onto the gauge.

Features:For bolt-action and single-shot firearms, or any firearm with straight-line access to the chamber;Regulates seating depth and the resulting "jump" to the rifling;Requires a Lock-N-Load Modified Case (sold separately) to fit your firearm's chamber and thread it onto the gauge