Lee C501-350-RF Double Cavity Mold BFB54D4C LEE. 501 diameter 350 grain bullet suitable for a cartridge like 500 S&W and 50 Beowulf. Handles included. Specifications for Lee C501-350-RF Double Cavity Mold BFB54D4C: Manufacturer: Lee Bullet Weight: 350 grain Features of Lee C501-350-RF Double Cavity Mold: Produces a .501 diameter 350 grain bullet suitable for a cartridge like 500 S&W and 50 Beowulf Handles included Package Contents: Lee C501-350-RF Double Cavity Mold Lee Double Cavity Mold produces a .501 diameter 350 grain bullet suitable for a cartridge like 500 S&W and 50 Beowulf. Handles included. LEE92166