Use the Lee Precision PaceSetter Dies if you want to produce factory-dimensioned ammo that reliably fits and feeds in any gun. They are the first choice for semi-auto actions and full-length sizing is a must if you are reloading for more than one firearm or reloading cases that were fired in others firearms. Pacesetter dies also include the Lee Factory Crimp Die.

Specifications and Features:
Lee Precision Very Limited PaceSetter 4-Die Set 90182
.450 Bushmaster
Full Length Sizing Die
Powder Through Expanding Die
Easy Adjust Dead Length Bullet Seating Die
Factory Crimp Die
Shell Holder
Powder Dipper
Instructions and Load Data included