Lee Precision PaceSetter 450 Bushmaster 4-Die Set Features The Lee Precision PaceSetter 450 Bushmaster 4-Die Set starts with a full length sizing die that resizes mixed range brass back to factory spec which matters most when the cases on hand come from several different sources and head spacing needs to be made uniform again. A powder through expanding die flares the case mouth while charging powder in the same step reducing handling and keeping the reloading bench workflow quick. The micrometer bullet seating die gives dead length seating with repeatable adjustable depth so bullet ogive contact and overall cartridge length stay consistent round to round. A factory crimp die finishes each round with a uniform crimp that holds the bullet firmly in place under the recoil and feeding forces a 450 Bushmaster rifle generates. Lee rounds out the set with a universal shell holder sized for the 450 Bushmaster case a powder dipper for measuring charges by volume and instructions with load data to guide a reloader through safe starting loads. This is the Type Full Length configuration meaning every case in the batch gets resized along its entire length rather than just at the neck which is the right choice for mixed or once fired range brass of unknown history. The included components mean a reloader does not need to source a shell holder or dipper separately before starting. Built by Lee Precision a long standing name in affordable reloading equipment this die set gives handloaders a complete and economical path to consistent 450 Bushmaster ammunition. Lee Precision PaceSetter 450 Bushmaster 4-Die Set Specifications Manufacturer: Lee Precision Model: PaceSetter 450 Bushmaster 4-Die Set Caliber: .450 BM Reloading Diameter: .452 Number of Dies: 4 Die Type: Full Length Includes: Full Length Sizing Die Powder Through Expanding Die Micrometer Bullet Seating Die Factory Crimp Die Universal Shell Holder Powder Dipper Instructions with Load Data Available At: GrabAGun