Dillon 40S&W Caliber Conversion Kits | RL550 / RL450 Series

Dillon Precision caliber conversion kits allow you to adapt your machine from one caliber to another in minutes.  They are a great way to maximize machine use when reloading multiple calibers.   Caliber conversion kits vary by machine type, and include various parts for each machine to quickly change calibers.  Please see the tabs below for specifics about each machine type.