Neck Sizing Bushings Universal outside dimensions of .500"" diameter by .375"" height to be used in most resizing dies. These neck resizing bushings have minimized neck runout in cartridge brass in nearly every die SAC have used them in. After attempting to eliminate and reduce neck runout in their sized brass using various commercially available neck bushings, they realized that every neck bushing has the same flaw, a straight, undersized hole when compared to the brass. Think about trying to push a thin walled straight tube into an undersized straight hole, how can SAC expect their brass necks to magically be free of runout. Their new bushings address the Mfg: Short Action Customs, Llc.
