Since we work in a machine shop environment, the best way to reach us is via email.We will do our best to contact you back within 48 business hours.

We are transitioning to our new website, www.21stcenturyinnovation.com so please bear with us.  If you have any questions on ordering don't hesitate to call 260-273-9909. Due to high order volume, all orders are at a minimum of 4 weeks out from time of order. (Some will ship earlier)  

We apologize for any inconvenience and appreciate your business.

Our 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.