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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. 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 the Modified Case 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.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
