Lee Precision Collet Neck Sizer 2 Die Set 300 AAC Blackout

Set includes Collet Neck Sizer Die, Bullet Seating Die, Shellholder, Powder Measure, charge table and storage box.. A collet in the sizing die squeezes the case neck against a precision mandrel for a perfect bullet fit with minimum bullet run-out. Notes: Collet neck sizer uses a collet to squeeze the case neck against a mandrel, creating a precisely aligned case neck while reducing runout. No lubrication necessary when neck sizing only. 7.62x54mm die set ship with a 0.308″ diameter mandrel for standard 30 caliber bullets.