Redding Reloading Match-Grade Model 3BR Powder Measure Green. The Redding Model 3BR Progressive Powder Measure features interchangeable hoppers that can easily accommodate one pound of black powder or a customized loader hopper that can accommodate a variety of powder charges. Because the hopper of the Model 3BR Progressive Powder Measure is cast aluminum it can handle a variety of load weights. Because the hopper is cast aluminum it wont rust and it is impervious to corrosive elements. The Redding Model 3BR Progressive Powder Measure also has the same interchangeable hopper it was designed for along with the ability to store two pounds of powder. Specifications for Redding Reloading Match-Grade Model 3BR Powder Measure: Manufacturer: Redding Reloading Fabric/Material: Polymer Capacity: 1 lb Color: Green Additional Features: With Pistol Chamber With Both Chambers Plain Quantity: 1 Package Contents: Redding Reloading Match-Grade Model 3BR Powder Measure Redding Reloading 3500: Match-Grade Model 3BR Powder Measure Green