Check the listing for details. Powder Measure Drop Funnel Tube. Condition: New. Listed at 19.20 USD. Powder Measure Drop Funnel Tube These precision brass funnels speed up powder flow. Compatible with the RCBS UniFlow and Hornady Lock-n-load powder measure droppers. Multi caliber funnels are available in the following sizes and are for general use. They have a tapered outlet and work with the largest variety of calibers. Use the largest drop tube that fits the case mouth for best results. Small for 20 caliber and bigger, Medium for 27 caliber (6.5mm) and bigger, Large for 40 caliber (10mm) and larger. Max case mouth is 50 caliber. As with any powder handling accessories, be sure to thoroughly clean before use. Caliber specific funnels fit most necks for the caliber listed. They have a step in the outlet that fits the neck aligning it with the funnel that is sized for optimum powder drop. Example, 30cal fits as small as 308 and up to most 7.65 calibers. Knurling has been improved and is different from pictures, they will be updated soon