As long as the primers haven't been stored in a barn and seen freezing and hot alternations they will be fine.

Bullets are as good as they were when they was new. If you have 20 year old powder and it's not "wet" (deteriorated powder looks wet) it's ok as well.

Tumbling after reloading is done more often than anyone will admit.....and at least one major reloading manufacturer eludes to doing it, then says that they didn't say to do it.

If the case is full of powder and the powder cant tumble in the case, it really isn't that bad.....but you didn't hear me say that it's a good thing to do!!! Yes, I've done it and have no fear of doing so again.....even though I don't recommend it......