Lee's Large Cutter with Lock Stud is used for .480 Ruger, .500 S&W and the .50 BMG (for .475 and larger). The large cutter can also be used with all case diameters smaller than .475. Size Large Type Case Trimmer Finish Silver Series Large Case Trimmer Weight 18 oz Caliber Multi-Caliber Function Case Trimmer Material Steel Quantity 2 Piece Compatible With Case Trimmers/Trim Pros