Forster Products Bushing Bump Neck Die Features The Forster Bushing Bump Neck Die takes a targeted approach to case sizing working the neck and adjusting headspace length while leaving the body of the case untouched. This reduces unnecessary brass working compared to a traditional full length die which can help extend case life over multiple reloading cycles. Because the die s decapping assembly has no expander ball the internal neck diameter is set entirely by the bushing installed giving reloaders precise control over the amount of neck tension on a loaded round. This level of control matters for .308 Winchester shooters chasing tight consistent groups. This die is designed to work exclusively with Forster bushings and is not compatible with Redding or Wilson bushings so reloaders should factor that into their bushing purchases. Forster recommends selecting a bushing approximately .002 inch smaller than a loaded round measures at the case neck with bushings available in .001 inch increments to fine tune tension. Bushings themselves must be purchased separately from the die. For .308 Winchester reloaders who want repeatable minimal brass working with precise neck tension control this Forster Bushing Bump Neck Die is a smart addition to the reloading bench. Forster Products Bushing Bump Neck Die Specifications Manufacturer: Forster Model: Bushing Bump Neck Die Caliber: .308 Win Type: Full Length Sizing Die Available At: GrabAGun