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Hornady Reloading Components & Accessories: Provide Consistency and Precision
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Hornady OAL Modified Case 300 Rem Ultra Mag B300
Controlling seating depth and the resulting "jump" to the rifling is widely regarded as critical to improved accuracy. A few thousandths of an inch difference in bullet and rifling length can mean the difference between average accuracy and true tack-driver performance. The Lock-N-Load O.A.L. Gauge is widely regarded as the most accurate, user-friendly, and dependable method of regulating seating depth and the resulting "jump" to the rifling.