September 5th, 2022

Reloading Die Maintenance — When and How to Clean Your Dies

Hornady Die cleaning

After purchasing a new set of dies from Forster, Hornady, Redding, or Whidden Gunworks, you’ll want to disassemble the dies, inspect then, and then remove the internal grease and/or waxy coatings placed on the dies by the manufacturer. Below are two videos that show how to de-grease and clean dies as they come “out of the box” from the manufacturer. The videos also explain how to clean your dies after regular use. Cleaning your dies helps remove carbon, brass shavings, lube residues and other stuff that can get inside the dies.

In the first video, from Creedmoor Sports, Bill Gravatt (Creedmoor’s President) shows various methods for cleaning dies both when new and after they have accumulated carbon and lube after use. This video is definitely worth watching. In the second video, a Hornady technician shows the method for degreasing dies before first use. A convenient aerosol spray cleaner is used in the video. You can also use a liquid solvent with soft nylon brush, and cotton patches. NOTE: After cleaning you may want to apply a light grease to the external threads of your dies.

Creedmoor Sports Die Cleaning Video with Bill Gravatt

Hornady Video Showing Aerosol Cleaner

Clean Your Sizing Dies and Body Dies Regularly
These same techniques work for cleaning dies after they have been used for reloading. Many otherwise smart hand-loaders forget to clean the inside of their dies, allowing old case lube, gunk, carbon residue, and other contaminants to build up inside the die. You should clean your dies fairly often, particularly if you do not tumble or ultrasound your cases between loadings. It is most important to keep full-length sizing and body dies clean. These dies accumulate lube and carbon residue quickly.

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