Federal introduced the Expanding Full Metal Jacket (EFMJ) a few years back, and those rounds have been fairly well received. Â 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. Â In some pistols, a hollow point bullet design doesn’t reliably feed. Â Even more, people run into the problem of hollow-point ammunition not being legal in some places (like the entire state of New Jersey). Â Another problem with traditional hollow points is that material can plug the hollow point and prevent expansion.
The Federal Guard Dog ammunition uses a polymer core and a full metal jacket. Â When the nose of the bullet strikes the target, the polymer core “gives way” and the bullet flattens. Â As the bullet flattens, it expands, creating a larger wound channel, which will hopefully incapacitate an attacker more quickly.
In the above video, Aaron caught up with the folks at Federal for a run down on the ammo loads and a look at how the bullet expands.
In the following video, Mike Holm gives us a rundown of the ammo from the SHOT Show, albeit with better audio:
The rounds are currently available in 9mm, .40 S&W and .45 ACP. The bullets are all relatively light for the caliber:
- 9mm 105 gr @ 1230 fps
- .40 S&W 135 gr @ 1200 fps
- .45 ACP 165 gr @ 1140 fps
According to Federal, the lightweight design combined with the relatively fast velocities help the bullet to deform quickly. When encountering a barrier – such as wallboard – the bullet tends to penetrate much less than conventional hollow point designs. While this may not be ideal for a law enforcement officer, this could be a very good option for a citizen who is shooting inside his own residence.
Update – The National Rifle Association awarded Federal with a Golden Bullseye Award for Ammunition Product of the Year in recognition of this line of ammunition.
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[…] Guard Dog Ammunition Video this looks like a nice option for those of you who live in states that do not allow hollow point […]