Hornady cases offer reloaders excellent uniformity in wall thickness, weight and internal capacity. We measure for consistently tight wall concentricity and even run our cases through a pressure calibration test to ensure uniform case expansion during firing. Hornday cases allow proper seating of the bullet, not only in the case, but in the chamber as well. High quality brass contributes to consistent charges and pressures. Tight Wall Concentricity Concentricity helps to ensure proper bullet seating in both the case and the chamber of your firearm. Higher concentricity also aids in a uniform release of the bullet on firing for optimal velocity and accuracy. Uniform Case Wall Thickness Benchrest shooters have long known that uniform case wall thickness is vital to accuracy. Hornady manufactures to extremely tight tolerances to ensure this critical element is as consistent as possible. More Reloads per Case Uses Large Rifle Primers (sold separately)