Best way to waterproof cartridges?

[armsmaster270]

I was given about 500 rounds of factory Remington 38 and 357 duty ammo because they got wet and the LE agency was afraid to issue them for fear they would missfire. They were wrong, but I had fun proving it.

 

[KCabbage]

It is completely unnecessary. Ease your mind and take a few rounds of the ammo you want to protect and drop them in a glass of water. Leave them for a week, and go fire them. You can stop worrying after that. If you really want to ease your mind, take a few and drop them into some WD40, Kroil, or some other penetrating oil that is supposedly able to kill primers. Leave the rounds for a few days. They will fire just fine. I expect to be challenged on this, but not by anyone who tries it.

Have you tried this? I challenge you! Go ahead and waste your ammo. I've seen more than one water test on ammo, but this is one I have proof for.
Behold page 46-47 http://ammo.ar15.com/project/AmmoOracle_061808.pdf

I expect to be challenged on this, but not by anyone who tries it.

Ha, that's reassuring.

 

[ClarkK]

I've lived in climates so humid that I was concerned the powder might get compromised without a little help. I started using the nail polish years ago on ammo I expected to store awhile. Never had a commercial cartridge go bad, tho, whether treated or not. I also keep a dessicant in the footlocker where I store most of my ammo.

A note on buying nail polish: The first few times I felt a little self-conscious in the drug store's cosmetics section, wondering if I could handle the transaction with sufficient nonchalance and dignity. Similar misgivings to carrying concealed the first few times.

In each case, I no longer give it a thought.

 

[Alleykat]

Have you tried this? I challenge you! Go ahead and waste your ammo. I've seen more than one water test on ammo, but this is one I have proof for.

Have you tried dropping a few rounds into a glass of water, then shooting it later?

 

[ISC]

I once took a magazine of 7.62x39 ammo of various manufacturers and left them in a coffee can full of water for a month. The only ones that wouldn't fire were the cartridges with steel cases that had actually started pitting. even then, most of them fired after I cleaned them up enough to chamber in the rifle.

It might have been different if they had been soaking in salt water or under pressure or tempurature changes.