I assume you are referring to reloading spent cartridge cases for firearms. While some gun owners do clean their brass in the dishwasher, it's generally not recommended for several reasons:
Detergent and chemicals: Dishwashing detergents often contain harsh chemicals that can damage the brass, especially if it's left in the dishwasher for an extended period. These chemicals may cause discoloration or weakening of the brass.
Residue and contaminants: Dishwashers are designed for cleaning dishes and utensils, so they may not effectively remove all the residue from the brass casings. Leftover detergent or food particles could potentially contaminate the brass and affect the reloading process.
Temperature and drying: The high temperature and drying cycle in a dishwasher can cause the brass to become excessively hot, potentially altering its properties and affecting the reloading process.
Household items: Some gun owners may worry about cross-contamination if they use the same dishwasher for brass cleaning and regular kitchen items.
Instead, it's best to use a dedicated brass cleaning method specifically designed for reloading. The most common methods include:
a. Tumbling: This involves placing the brass in a tumbler with media, such as crushed walnut shells or stainless steel pins, to clean and polish the cases.
b. Ultrasonic cleaning: Using an ultrasonic cleaner with a cleaning solution can efficiently remove dirt and residue from the brass cases.
c. Hand cleaning: You can clean brass cases manually using a brass brush, cleaning solution, and some elbow grease.
After cleaning the brass, ensure it's thoroughly dried before proceeding with the reloading process. Properly cleaned and prepared brass is essential for consistent and safe reloading. Always follow reloading guidelines and safety protocols to ensure the best results and prevent any accidents.