I have used the same Lyman Corn Cobb Media for two years now. have polished 100's of .308, .270 & 7mm RM cases with it. Still polishes okay, just takes a bit longer than it used to.
Have got a new batch of Hornady walnut media & One Shot polish additive to replace it with. May end up running both: use the older stuff for cleaning off the lube after sizing and the new stuff for making it nice and shiny!![]()
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