Hornady Unprimed Brass Cases 300 Ruger Compact Magnum (RCM) (50pk)Hornady produces brass with the same precision, attention to detail and focus on perfection that has made them a world leader in bullets. They measures their brass for consistent wall concentricity, tests pressure calibration to ensure uniform case expansion and hand inspects each piece. This dedication to quality ensures proper seating of the bullet both in the case and in the chamber and consistent charges and pressures. The result is optimal