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The AR15.Com Ammo Oracle

History and Basic Design of .223 and 5.56 Ammunition.

Performance of .223 and 5.56 Ammunition.

Terminal Performance of .223 and 5.56 Ammunition.

.223 and 5.56 Ammunition Testing

Selection of .223 and 5.56 Ammunition.

Ammunition recommendations from the authors of the AR15.com Ammo-Oracle.

Purchase and Storage of .223 and 5.56 Ammunition.

Legal questions.

Miscellaneous .223, 5.56 and Other Ammunition Questions.

Ammo Oracle

Q. I'm buying ammo for long-term storage and I have found some surplus ammo cheap. Should I buy that?

While it is certainly recommended that you have plenty of ammo on hand, if you are in a situation where you may be putting your life on the line, you should be using new-production ammo. Although properly-stored ammo will last for decades with little degradation, there's no way to tell how surplus ammo was stored. Often, the reason the ammo was surplussed in the first place was because it was left exposed to harsh conditions and can no longer be trusted for military use. Other surplus ammo is ammo that didn't meet required specifications and was sold off to reduce financial loss. In neither case should you bet your life on this ammo. Buy new-production ammo, test some of it in your rifles and then store it properly.

Fact: Most surplus ammunition is from the late 1980s (Reagan era) or early 1990s and is on the surplus market because it has exceeded the recommended shelf-life of the manufacturer. While often this ammo shoots wonderfully for recreational use, military applications are much less tolerant of failures than recreational uses. A pair of failure to fire rounds at the range is not a big deal. In the field it can easily be a life or death difference.

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