Brass Cleaning Methods — Tumbling, Ultrasonic, Chemical & More « Daily Bulletin

Shiny brass -- it may not shoot more accurately, but it does make you feel better about your hand-loaded ammo. While it's not necessary to get brass bright and shiny after every firing, it is a good idea to clean powder residue, grime, and grit off your brass before you run cases into sizing dies. There are many ways to clean cartridge cases.

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