The RCBS Quick Change High Capacity Drop Tubes are designed for reloaders who want to preset their favorite large capacity rifle charges, such as 110 grains for their 30-378 Weatherby or 120 grains for the 600 Nitro Express. These drop tubes allow you to achieve consistent and precise powder drops for larger rifle cartridges. The High Capacity Drop Tubes, when used with the Quick Change Drop Tube Adaptor, can also be added to existing Uniflow™ or Quick Change powder measures. Choose the RCBS Quick Change High Capacity Drop Tubes and Drop Tube Adaptor and achieve accurate and efficient large capacity rifle charging.