RCBS manufactures thirteen adapters, .17-.50 caliber, for use with the RCBS MatchMaster Powder Funnel. Funnel Adapters have a unique interior design for a precise fit to your caliber of choice.Elevate your reloading precision with RCBS MatchMaster Funnel Adapters. Designed for an exact fit with the MatchMaster Powder Funnel system, these adapters ensure seamless, spill-free powder flow into your case mouth for both rifle and pistol calibers. Each adapter is precision-engineered to match specific calibers, providing a snug and reliable connection for clean, efficient reloading. Whether you're loading .17 caliber cases or .50 caliber rounds, these adapters eliminate powder waste and maximize accuracy with every use.Crafted with durability and performance in mind, RCBS MatchMaster Funnel Adapters are an essential addition to your reloading bench. Pair them with the MatchMaster Powder Funnel and Drop Tube for the ultimate reloading setup.