Federal Guard Dog Ammunition Video

Federal GuardDog ammunition

Federal introduced the Expanding Full Metal Jacket (EFMJ) a few years back, and those rounds have been fairly well received.  More recently, the company introduced the Guard Dog line of personal defense ammunition, which uses similar technology.

The design concept is to achieve an expanding bullet without using a traditional hollow point.  In some pistols, a hollow point bullet design doesn’t reliably feed.  Even more, people run into the problem of hollow-point ammunition not being legal in some places (like the entire state of New Jersey).  Another problem with traditional hollow points is that material can plug the hollow point and prevent expansion.