Basically what will happen if you shoot someone in self-defense with FMJ is this: That bullet is going to go straight through your target and continue on to whatever may be behind it. Instead, if you use a JHP round for self-defense, the bullet is designed to open up upon impact in order to expand.
One of the most dangerous things that can happen if using FMJ for self defense, is hitting another person that happens to be beyond your target. With FMJ rounds, many are definitely capable of going through multiple people. Here is a picture showing various FMJ bullets after impact. In this example, they were fired at and through phone books:. The example below shows various rounds after being fired into ballistic gel:.
Another thing to think about is stopping power. This is the purpose of these rounds and what they are designed to do; to stop a threat from advancing. If you were to instead use FMJ, the wound channel created would be much smaller compared to the former.
That threat could still be very much headed in your direction even after a few shots. Target ammunition is much less expensive than defense rounds, which is why some novice and even advanced shooters will choose target ammunition over defense rounds for their carry weapon.
Unfortunately, not all ammunition is created equal , and if you ever need to use your weapon for self-defense you may end up in trouble. Most target ammunition is lightweight with a soft interior usually lead material surrounded by a full metal jacket. They are less expensive to produce and therefore cheaper to purchase.
While target ammunition may be less expensive, it is also less effective because of its design. Target ammunition will not expand or fragment when it hits a target simply because that is not what it is designed to do. Whereas defense rounds are specifically manufactured to create damage to the object or target that it hits. Commonly called hollow-point projectiles, these bullets feature a cavity on the tip of the bullet.
This cavity, or hollow-point, causes the bullet to expand upon impact causing a significantly higher amount of damage than a bullet meant for target practice will. Target Ammunition Target ammunition is used on the range during target shooting.
Regular practice is essential for anyone who intends to use their firearm for protection, as you want to be able to rely on muscle memory in an active situation for the best protection. For that reason, most target ammo is less expensive than defense ammo, but that lower price tag also means the ammunition is manufactured differently. Target ammo is primarily FMJ, or full metal jacket. This type of construction means that the bullet is likely to penetrate much further than defense ammo, and most target shooting ranges are designed for that result.
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