At Winchester, brass is the foundation of what could be the most memorable shot of your lifetime. Extra time and care is taken in the creation of their cases, producing efficient rounds that meet high quality standards. Their cases offer reloaders excellent uniformity in wall thickness weight and internal capacity. They measure for consistency tight wall concentricity and even run their cases through a pressure calibration test to ensure uniform case expansion during firing.

Winchester Unprimed Brass Cases 40 Smith & Wesson 100/Bag