Redding Neck Sizing Bushings .333 are precision tools for reloading, manufactured from heat-treated steel with a titanium nitride treatment to enhance surface hardness and minimize friction. This bushing is designed to provide the necessary neck tension to hold bullets securely in place without excessive resizing. Redding offers a wide range of diameters to accommodate calibers from .17 to .338.Key FeaturesMaterial: Made of heat-treated steel for durability.Titanium Nitride Treatment: Increases surface hardness and reduces friction during the resizing process.Neck Tension: Provides optimal neck tension to hold bullets firmly in place.