The 7mm Remington Ultra Magnum Modified Case is an essential component for precision reloading with Lock-N-Load measuring tools and equipment.7mm Remington Ultra Magnum Modified CaseCompatible with Lock-N-Load measuring systemsPrecision manufactured for accurate measurementsEssential for cartridge overall length (COL) determinationEnables precise bullet seating depth measurementThis modified case allows reloaders to accurately measure cartridge dimensions and optimize bullet seating for improved accuracy and performance in 7mm RUM chambered firearms.