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Corn cob has been the go-to for putting a shine on brass for as long as folks have been tumbling cases, and this 15-pound bag from Frankford Arsenal gives you enough to keep the tumbler running for a good long while. It's untreated media in a 16/20 sieve size, which means the granules are just the right coarseness to slip inside case mouths and around primer pockets without packing in and getting stuck. The saying around the reloading bench holds true: walnut cleans a little harder, but corn polishes better. When you want that bright, uniform finish on already sized or annealed brass, this is the stuff that gets you there.
Using it couldn't be simpler. Pour some into your vibratory or rotary tumbler, drop in your dirty cases, and let it run. It lifts dirt, grit, and powder residue off the brass so that grime doesn't end up scratching your sizing dies or working its way into your chamber. Reloaders who run it consistently point out how little dust it throws compared to a lot of cob media out there, which is a real bonus when you're working in a garage or basement. A little brass polish mixed in takes the shine up another notch if you want that showroom look.
Fifteen pounds goes a long way. It'll fill most tumbler hoppers with plenty left in the bag, and the media is reusable across many batches before it loses its bite. When it starts leaving cases duller than you'd like, that's your cue to swap in fresh media. Beyond the reloading bench, this cob fill also works great as ballast in shooting bags and rests, so nothing goes to waste if you retire a batch from tumbling duty. For anyone processing brass in volume, buying it by the bag just makes sense.
No, this is untreated corn cob media in a 16/20 sieve size. It works great on its own for polishing, and you can add a brass polish or a small amount of car wax to brighten the finish even more if you want. Running it untreated also keeps the media cleaner and more reusable.
The general rule reloaders go by is that walnut cleans a bit more aggressively while corn cob polishes better. Corn cob is the better pick when your brass isn't heavily fouled and you're after a bright, shiny finish, especially after full length sizing or annealing. Many folks keep both on hand for different jobs.
Fifteen pounds fills most vibratory and rotary tumbler hoppers with plenty left over in the bag for future refills. The media is reusable across many batches, so a single bag lasts a long time before you need to replace it. Just swap in fresh media once it stops leaving cases as bright as you'd like.
Yes, plenty of shooters use corn cob media to fill shooting bags and rests for the range. It's a handy way to put a retired batch of tumbling media back to work instead of tossing it. The lightweight, packable granules make good ballast for stabilizing your rifle on the bench.
| UPC | 661120460633 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 446063 |
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