Lee Collet Neck Sizing Die Only 300 Win Mag

The Lee Collet Neck Sizing Die is a single-die rifle reloading tool purpose-built for the 300 Winchester Magnum. Lee's collet die design uses a steel collet to squeeze a mandrel, drawing the case neck down uniformly around the mandrel to produce a precisely aligned case neck with reduced runout.

The Lee Collet Neck Sizer sizes only the case neck and requires no case lubrication, eliminating the mess of resizing lube and saving time at the bench. This is a die-only unit - one collet neck sizing die in the Lee Collet die series - designed for bottleneck rifle cases like the 300 Win Mag. Sold as a single die.