Does anyone store their AR in a Pelican case, if so, are there any rust worries?

I would not store it in  a pelican for extended periods of time.

Foam tends to trap moisture, hence worries of rust.

I have stored my Hasselblad cameras in one for many years without any problems. I have one, recently purchase, for some rifles. I would recommend keeping a drying solvent in the case and purge the air. I do not see any trouble with rust. Just my .02 worth.

I wouldn't store a rifle in any case.

My department patrol rifle has been in the Pelican case now for....... going on 3 years.  No rust yet......  

Pelican, as with any "case" is for transporting firearms. Not storage.

All of my guns are on racks in my gun room except one.  I have an AR SBR in a fitted Pelican case with accessories and it has been there for 5 years.  I only take it out to shoot it and for some cleaning and so far absolutely NO RUST of any kind.  I mainly keep it in the case now because I WANT TO SEE if it will rust like everyone says it will, but so far you can't tell it has been in a case for the past 5 years.

MadDog

I wouldn't.

How about if you use one of these and then put it in the case??? that is how i was planning on storing mine until i have enough guns to need and the money to buy a safe.

Quoted: How about if you use one of these and then put it in the case??? that is how i was planning on storing mine until i have enough guns to need and the money to buy a safe.

Any other methods of controlling moisture?

There is nothing wrong with storing your guns in a case, IF your willing to do periodic inspections, and the case seals.  As with all our military gear that are in containers, there are monthly, quarterly, or yearly inspection criterias for each individual component.

I suggest using the appropriate amount of desiccant for the size container you have.  The desiccant packs should tell you how many square in/ft it will cover.  If your gear is in foam padding, put your gear in barrier paper, along with the desiccant packs inside with your gear, and then put the gear into its place.  Add extra desiccant to the container.  This will insure maximum protection from the elements.  Then, at your discretion (I would say every 3 months), check periodically to make sure your desiccant is still good, and that your gear doesn't have any corrosion on it.  Keep in mind desiccant can be reused, so if it does go bad, just heat it up in the oven to let it dry.  If you spot corrosion on your gear, clean it off, and redo all the steps.

Now also keep in mind if your pulling it out every few weeks to shoot, then all of this is not needed.  I only recommend what I've given here as long term storage.  

If you do use the items regularly, wait until the temp of the gun is equal to the temp of the case before you put you weapon in the case.  This will prevent sweating.  Since you would be using the weapon regularly, clean it when your done with it, and stick it back in the case.  No desiccant needed, but you could throw a pack or 2 in there just to absorb any moisture that might get in there if you were paranoid about it...