The RCBS Uniflow Powder Measure Drop Tube is a precision reloading accessory designed for 17 to 20 caliber cartridges. This specialized drop tube ensures accurate powder dispensing for small caliber ammunition reloading.RCBS Uniflow Powder Measure Drop Tube (SKU: RCBS-9028)Compatible with 17 to 20 caliber cartridgesPrecision-engineered for consistent powder flowEssential accessory for Uniflow powder measure systemsDesigned for accurate small caliber reloadingPerfect for reloaders working with smaller caliber cartridges who demand precision and consistency in their powder charging process.