Hornady Match Grade New Dimension Bushing Full Length Sizing Die 300 Winchester Magnum

The Hornady Match Grade New Dimension Bushing Die is designed to provide the ultra precision and match winning performance demanded by serious shooters. The Match Grade Die feature self centering interchangeable neck sizing bushings that are held to strict tolerances to provide superior accuracy. Includes a Full-Length Sizing Die. Plastic storage box and two Sure-Loc rings included. Shellholder sold separately. Notes: Sizing die features precision-polished elliptical expander to reduce friction and case-neck stretch. Use of Hornady Match Grade Neck and Full Length Dies and Bushings: Hornady Match Grade dies have a separate interchangeable neck size bushing (not included with die). The dimension of the bushing (inside diameter listed) determines the neck size when the brass is inserted into the die. Standard dies size to SAAMI minimum specification and this is often not necessary as a particular rifle brass type and chamber may not need minimum dimensions. Less sizing results in less working of the brass. Using some loaded or dummy cartridges that fit the rifle s chamber without excessive play measure the diameter of the case neck. Subtract .001 from that diameter and the result should be a reasonable starting point for the correct bushing dimension. Select a size that is at that dimension or just under it. Bushings work in both the neck and full length Match Grade dies. The bushings are available in .002 increments.