RCBS Case Neck Brush Medium. OpticsPlanet is an Authorized US Distributor for RCBS Reloading Equipment. Clean dirt and powder residue from inside necks and simultaneously lubricate for expansion with our case neck brushes. No-roll handle design accepts all three nylon bristle brushes: small brush for .22 to .25 caliber medium brush for .270 to .30 caliber and large brush for .35 to .45 caliber. Specifications for RCBS Case Neck Brushes: Manufacturer: RCBS Caliber: Universal Quantity: 1 Country of Origin: USA Features of RCBS Case Neck Brushes Nylon bristles No-roll handle design Package Contents: RCBS Case Neck Brushes We offer the complete line of RCBS Reloading Equipment. For our complete selection of products by RCBS Gear on sale please visit our RCBS Gear page. For more Reloading Equipment please visit our Reloading Equipment store section. RCBS 9328: Case Neck Brush Medium