Hornady Lock-N-Load Overall Length Gauge Modified Case Place Order

Regulating seating depth and the resulting “jump” to the rifling is widely regarded as fundamental to improved accuracy. A few thousandths of an inch change between the bullet and the rifling can make the difference between average accuracy and real tack-driver performance.

Achieve precise bullet seating depth

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. 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.

• Rifle and pistol metering assemblies
• Case activated powder drop and linkage
• Cartridge catcher
• Large and small primer pick-up tubes
• 5 Lock-N-Load Bushings