One of the best kept secrets in accurate reloading is precise bullet seating depth. 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 so-so accuracy and real tack-driver performance. The Lock-N-Load® O.A.L Gauge is
universally acclaimed as the most accurate, easy-to-use and reliable method of obtaining that critical relationship.
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.
For all bolt-action and single-shot firearms, or any firearm with straight-line access to the chamber. This model is preferred, as it is most precise and user friendly.
These cases are specially modified to work with Lock-N-Load Precision gauges. A special fine thread is used to attach them to the gauges, ensuring that they remain perfectly square for precise alignment in the chamber of your firearm. Second, the neck of the case is made perfectly round and opened slightly to allow a standard diameter bullet to slip into the case mouth effortlessly, but concentrically, to ensure the most precise results possible.
If your case is not listed on the chart below and you need a case modified, kindly get in touch with us about our custom service.
Reloading Solutions Limited
Tel: 01865 378200
Monday - Friday 09.00 to 17.00 hrs
Saturday and Sunday - CLOSED