brass tumbling duration?

[Squidward]

It depends on the condition of the brass and type of media. IMO, walnut is a bit faster than corncob. I'll pour in the polish and run it for 10 minutes before I put in the brass. Then an hour to an hour and a half usually suffices.

[thenodnarb]

Wet tumbling in stainless steel media is the only way to go

I heard recently that some people are getting away from this because the tumbling process with stainless pins are work hardening the brass, and causing neck splits at a higher rate.
What do you think?

[09cs]

I usually just turn it on, and go do something else and come back when I remember

[KahrGuy9]

I run mine overnight, 1st in walnut with a teaspoon of mineral oil, and then again in corn with a teaspoon of NuFinish. You could run it fdays, but after few hours it's as clean as it gets.

[CalNative57]

I clean with a HF ultrasonic cleaner then once dry I tumble in corncob with Dillon Rapid Polish for about an hour, comes out nice. If you want more of a shine go longer.

[IntoForever]

I run mine for an hour. Overnight? Electric bill is going to be more than buying factory ammo.

[CK_32]

Using SS media I check on it after 2 hours (usually done by then), then every 30 min after until I'm happy with the results.

I'm also not a clean brass snob. Clean is clean enough. My fingers usually funk up the shine by the time I'm done anyways.

[Bigtwin]

I run my brass for an hour or two with Treated corn cob media. And done. Iam not looking for real pretty, Just clean.

[Carsgunsandchics]

I run it for about an hour, then size and again for an hour. I run another batch while I size the first and so on and so forth.

[KahrGuy9]

I run mine for an hour. Overnight? Electric bill is going to be more than buying factory ammo.

Better check your math, or your rates again, or maybe you are running a 2hp tumber (1hp = 746 watts). SC Edision is Tier 1 at 14 cents per kilowatt hour (1,000 watts = 1 kilowatt, 1,000 watts running for one hour is 1 kilowatt hour). The data is based on 11 cents per kilowatt hour, so multiple the examples shown by 14/11=1.27 times 26 cents a day corrected to 33 cents a day. Times 30 days is about $10 per month running 24/7. So 8 hours a day is a little over $3 a month.

http://rocktumbler.com/tips/rock-tumbler-cost/

Running a 2hp tumbler for 8 hours a day would cost about $50 a month, about the same as my pool pump.....

[croue]

I run mine for an hour. Overnight? Electric bill is going to be more than buying factory ammo.

I do like this. ss for about an hour. I have a timer on the plug in case i forget. But after an hour it looks pretty much the same as after 4 hours.
C

[Enfield47]

I use corn cob media with some Cabela's case polish added in and generally tumble for and hour or two. If I'm tumbling old surplus brass (HXP) I might run it longer depending on the condition of the cases. I like my brass shiny so I can more easily spot defects. I also like to cut up a used dryer sheet into four strips and put that in with each load of brass. It really helps to suck up a lot of the powder reside and keeps the corn cob cleaner.

[the86d]

I run mine overnight, 1st in walnut with a teaspoon of mineral oil, and then again in corn with a teaspoon of NuFinish. You could run it fdays, but after few hours it's as clean as it gets.

Mineral oil, not mineral spirits?

[OldShooter32]

Stainless for 45 minutes, and walnut after sizing for an hour.
Change the walnut every five loads or so.

[KahrGuy9]

Mineral oil, not mineral spirits?

Yup, just plain old mineral oil, like in the grocery store. It loads up the media, makes it last for a very long time, with absolutely no dust. Fill the tumler up with walnut, put in a teaspoon, or two, of oil, run it until it has equally coated the media, no lumps, and dump in your brass. Comes out clean but not shiny, the corn is to polish it up real nice.