Lee Decapper Heavy Duty 6mm to 25 Cal Guided F51FC854 LEE. For use with case mouth diameters of .236" or larger. 243 Winchester to 6.5 Grendel. Use in conjunction with Universal Decapping Die product 90292 guided decapper helps align the case to reduce the chance of bending or breaking a decapper. Features of Lee Decapper Heavy Duty 6mm to 25 Cal Guided: Heavy Guided Decapper Universal Align Reduce Package Contents: Lee Decapper Heavy Duty 6mm to 25 Cal Guided 243 to 25 caliber heavy duty guided decapper. For use with case mouth diameters of .236" or larger. 243 Winchester to 6.5 Grendel. Use in conjunction with Universal Decapping Die product 90292 guided decapper helps align the case to reduce the chance of bending or breaking a decapper. LEE91577