I'm using corn cob media, no polish and it's been 10 degrees F or less the last two days the tumbler has been going. For a typical 3 hour run the brass comes out bright and shiny. This time it's clean but more of a matte finish. 9mm, 38 special and 357 magnum brass.
Should I tumble it longer, add some polish? Curious what other guys have tried.
kill ur trump
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i use electrosonic. i don't have that problem. i always use to use polish in my media never had a problem then either.
Glacierwolf
I live in Alaska - I have set my tumbler on the front porch at -45F and had the cases come out fine.
Sounds like your media is old and worn out, or, you could have debris like sand or dirt mixed in - or too many cases. Dump your media into a screen and let all the small particles fall out. The put some in the palm of your hand and push them around really hard. If the media doesnt hurt - it's all rounded like little balls - it could be old. And if you get all this nasty black stuff - it could be dirty.
Dont bother cleaning and washing your media unless the stores are out and you have no choice.. Most of the green or red rouge - the the crap that comes off the brass - the stuff floats and makes a huge mess.
Squiggy
My polisher is in the basement where it is around 60 degrees. The polisher is filled with a mixture of walnut shells and corn cob and my brass comes out looking just fine.
For gungey BP brass, an overnight soak in water and Lemi-Shine gets them clean with a matte finish. or CAS competition or for general range use I just let them dry and load up. If memory serves, I believe the Lemi-Shine idea was Cane Toad's.
Jin Hayashi
Temperature shouldnt affect it
Try changing the media and adding some new polish
?
IMO, if the carbon is gone, the 'shininess' doesn't matter at all.
But I use an ultrasonic cleaner, and in an temperature controlled environment, so I've never had that problem.