The Focal Point of Your Reloading Process When Short Action Customs set out to develop the Nexus Press, they were trying to build a press that eliminated any issues associated with the die and shell holder relationship. They also wanted to develop a more consistent and powerful cam over action every single cycle of the press as well as a work envelope so you can easily and efficiently process your brass without annoying C arms or small work areas in your way. One of the highly innovative features of the Nexus Press is the dual floating shell holder system; which is also quick change and tool-less. This is similar to a custom rifle action's floating bolt head feature. The sh Mfg: Short Action Customs, Llc.