LEE 92379 is a Lee Precision Micrometer Full-Length 2-Die Set designed for reloading .270 Winchester ammunition. This set is built to provide precise and repeatable cartridge sizing. It features: Micrometer Seater: Allows for easy and exact adjustments to bullet seating depth. Full-Length Sizer: Returns spent brass to SAAMI specifications. Included Components: Typically includes a shell holder and powder measure.