The RCBS Powder Funnel is ideal for reloaders who are looking for an all around powder measure. The drop tube was specially designed to avoid messy powder spills around the case mouth while the measure features a non-stick, anti-static surface to prevent powder from sticking and square lip to prevent rolling. Features: - Specially designed drop tube to avoid messy powder spills around case mouths Specifications: - Caliber: . 22 to . 45 Cases - Material: Plastic Funnel Note: Non-stick, anti-static surface with square lip to prevent rolling. Will not work with Short or Super Short Magnum