What he said. Corncobb and polish is a time tested method of cleaning brass. Why does everyone seem to think they may have found a better way?
I have tried them all. (and know better than to use clam shells or rocks.)
Corncobb and good polish(made for ammunition)= clean brass. Period.
Please stop trying to reinvent the wheel. We have already been down that road...
I have found that untreated corncobb to clean and treated to polish after resizing works very well. My reloads look like new factory ammo and shoot even better than factory. Even after the 5th loading of 223 or the 10th of 45. Here's the trick. Tumble 2 hrs before resizing in untreated to clean. Tumble after resizing in untreated 1 hr. to suck up the lube. Tumble 1 hr after trimming in treated to polish and remove any brass shavings. Tumble only 10 min. in treated after loading to remove hand oil and excess metal. Result, New looking brass that will not tarnish after 4 months in the can.
I have tried them all. (and know better than to use clam shells or rocks.)

Corncobb and good polish(made for ammunition)= clean brass. Period.
Please stop trying to reinvent the wheel. We have already been down that road...
I have found that untreated corncobb to clean and treated to polish after resizing works very well. My reloads look like new factory ammo and shoot even better than factory. Even after the 5th loading of 223 or the 10th of 45. Here's the trick. Tumble 2 hrs before resizing in untreated to clean. Tumble after resizing in untreated 1 hr. to suck up the lube. Tumble 1 hr after trimming in treated to polish and remove any brass shavings. Tumble only 10 min. in treated after loading to remove hand oil and excess metal. Result, New looking brass that will not tarnish after 4 months in the can.

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