I have noticed that my hand loads start to tarnish after a month or so.I have factory
loads that are two years old and still look as good as the day i bought them.Anyone know how i can stop the tarnish?

I've noticed that if I leave trace ammounts of case lube on my loads they seen to dull fairly fast. If I wipe then off with a clean towel they stay nice and shiny. Some of the others may know of other reasons why they tarnish.
*Nut*

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My wife said "If you load ONE more box of ammo, I'm gonna take the dog and leave"
God, I'm sure gonna miss that dog. )

Zip-Lock bags work like a charm.

If you have a brass polisher, add a small amount of flitz metal polish or dillon metal polish. They have something in them that keeps the brass from tarnishing. Do this after resizing. Also it sounds crazy, but wear rubber gloves as the oil from your skin mixed with any salt from sweat you may have will tarnish the cases. Then again sometimes they just tarnish and there is not much you can do about it. The zip lock bags work excellent also.

Your handloads have been handled...if you play with your factory loads as much they will discolor also.

Keeping them stored properly will slow down the process...or wiping all cases with isopropal alcohol before packing them away will also help...personally I don't really wanna wipe down 5000 rounds of ammo...

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http://stevespages.com/page8.htm

When I used some foam rubber as a spacer in a plastic ammo box the bases tarnished. When the humidity goes up in the summmer cases tarnish faster.

I know that some aluminum foil packed over silverware will prevent tarnishing. I think thats a sulfur compound that gets on the silver and it may be the same on the brass.

Simply limit the rounds' exposure to air and moisture and you will be okay. The best option is vaccum packing (yes radical).

Those boxes that are plastic & slip or snap closed work for me just fine.

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Best regards,
Alex

Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the vote! - Benjamin Franklin 1759

Electrolytes and water in your sweat and case lube makes the brass easy to "rust".

You can polish them clean with metal polish (Fritz, but not Brasso) and put them in a small container away from outside air and moisture.