RCBS X Die Full Length Die Set .300 Wby

The X Die Sizer features a patented mandrel with an expander ball and decapping pin, which reduces case growth caused by the case mouth contacting the mandrel. This design prevents neck wall thickening and stabilizes case length after initial trimming, preserving case life and accuracy.

Features

• Includes X Die Sizer and Standard Seater Die
• Patented mandrel with expander ball and decapping pin
• Eliminates need for repeated case trimming after initial .020 inch trim
• Maintains case length without shortening
• Prevents neck wall thickening during sizing
• Stabilizes case length below maximum after initial growth

Specifications

• Caliber: .300 Winchester Magnum (Wby)
• MPN: 39212
• UPC: 076683392121
• Brand: RCBS