Description

Hornady Lock-N-Load O.A.L. To use the Lock-N-Load® O.A.L Gauge, you will need a Modified Case (sold separately) to fit your firearm’s chamber and thread it onto the gauge. Hornady® offers interchangeable modified cases in most common sizes from .17 Remington up to and including 500 Nitro. These specially prepared modified cases are threaded at the case-head and have a .002″ oversized neck to accept the same bullets you intend to load. This is critical, as the Lock-N-Load® O.A.L Gauge dimensions obtained will be accurate to .001″ These results cannot be attained with competitive products, which use a simulated bullet with an arbitrary shape. or all bolt-action and single-shot firearms, or any firearm with straight-line access to the chamber.