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The Range
Ammo & Reloading
Cleaning Brass
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<blockquote data-quote="alank2" data-source="post: 959159" data-attributes="member: 108"><p>Hi,</p><p></p><p>For fun, I went nuts trying to find the best methods of cleaning brass a couple of years ago. I tried just about everything I could think of. Wet ceramic, ultrasonic, chemical, etc. In the end I found that while there are methods that will get brass spotless on the inside and the outside, it takes a level or work to do it that really has no tangible benefit.</p><p></p><p>If you want spotless cases, ultrasonic works very well. The only problem is that the solutions that clean the best also tend to leach the copper out of the brass which turns them greenish. You really have to limit the time you allow the cleaning agent or chemical to do its work. With ultrasonic you need a powerful unit, or have to do a small number of brass at one time so you don't damped the ultrasonic energy too much (which then takes longer to clean, allowing the chemicals longer to leach).</p><p></p><p>I went back to using a vibratory tumber with corn cob media. I spray the media with a 50/50 mix of nufinish car wax and mineral spirits to keep it moist enough to keep the dust down, add a nice polish shine, and decent polishing speed. I probably run brass for 2-4 hours in it and it turns out very shiny on the outside. This will not get the inside spotless or even touch the primer pocket.</p><p></p><p>Good luck,</p><p></p><p>Alan</p></blockquote><p></p>
[QUOTE="alank2, post: 959159, member: 108"] Hi, For fun, I went nuts trying to find the best methods of cleaning brass a couple of years ago. I tried just about everything I could think of. Wet ceramic, ultrasonic, chemical, etc. In the end I found that while there are methods that will get brass spotless on the inside and the outside, it takes a level or work to do it that really has no tangible benefit. If you want spotless cases, ultrasonic works very well. The only problem is that the solutions that clean the best also tend to leach the copper out of the brass which turns them greenish. You really have to limit the time you allow the cleaning agent or chemical to do its work. With ultrasonic you need a powerful unit, or have to do a small number of brass at one time so you don't damped the ultrasonic energy too much (which then takes longer to clean, allowing the chemicals longer to leach). I went back to using a vibratory tumber with corn cob media. I spray the media with a 50/50 mix of nufinish car wax and mineral spirits to keep it moist enough to keep the dust down, add a nice polish shine, and decent polishing speed. I probably run brass for 2-4 hours in it and it turns out very shiny on the outside. This will not get the inside spotless or even touch the primer pocket. Good luck, Alan [/QUOTE]
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