21st Century Caliber Specific Expander Mandrel - .221". Sold individually

Our caliber specific expander mandrels are available in .0005” increments in calibers 22 to 338 and will range from .001” above bullet diameter to at least .003” below bullet diameter depending on caliber.  This will allow the reloader to find proper neck tension to fine-tune their loads.  The oversized expanders will also help straighten necks prior to sizing to improve concentricity.  

21st Century Expander Mandrels and Arbors are designed for proper fit in our die bodies. While these may work in most Sinclair and PMA die bodies we cannot guarantee proper fitment in those bodies.

Machined to hold a tolerance of  +/_  .0002"